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mxw_wotlk_azerothcore/deps/acelite/ace/ACE.cpp

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#include "ace/ACE.h"
#include "ace/Basic_Types.h"
#include "ace/Handle_Set.h"
#include "ace/Auto_Ptr.h"
#include "ace/SString.h"
#include "ace/Version.h"
#include "ace/Message_Block.h"
#include "ace/Log_Category.h"
#include "ace/Flag_Manip.h"
#include "ace/OS_NS_sys_select.h"
#include "ace/OS_NS_string.h"
#include "ace/OS_NS_strings.h"
#include "ace/OS_NS_signal.h"
#include "ace/OS_NS_stdio.h"
#include "ace/OS_NS_sys_resource.h"
#include "ace/OS_NS_sys_wait.h"
#include "ace/OS_NS_sys_time.h"
#include "ace/OS_NS_time.h"
#include "ace/OS_NS_sys_uio.h"
#include "ace/OS_NS_sys_stat.h"
#include "ace/OS_NS_ctype.h"
#include "ace/OS_NS_fcntl.h"
#include "ace/OS_TLI.h"
#include "ace/Truncate.h"
#if !defined (__ACE_INLINE__)
#include "ace/ACE.inl"
#endif /* __ACE_INLINE__ */
#if defined (ACE_HAS_POLL)
# include "ace/OS_NS_poll.h"
#endif /* ACE_HAS_POLL */
// Open versioned namespace, if enabled by the user.
ACE_BEGIN_VERSIONED_NAMESPACE_DECL
namespace ACE
{
// private:
// Used internally so not exported.
// Size of allocation granularity.
size_t allocation_granularity_ = 0;
// Size of a VM page.
size_t pagesize_ = 0;
// Are we debugging ACE?
// Keeps track of whether we're in some global debug mode.
char debug_;
}
int
ACE::out_of_handles (int error)
{
// EMFILE is common to all platforms.
if (error == EMFILE ||
#if defined (ACE_WIN32)
// On Win32, we need to check for ENOBUFS also.
error == ENOBUFS ||
#elif defined (HPUX)
// On HPUX, we need to check for EADDRNOTAVAIL also.
error == EADDRNOTAVAIL ||
#elif defined (ACE_LINUX)
// On linux, we need to check for ENOENT also.
error == ENOENT ||
// For RedHat5.2, need to check for EINVAL too.
error == EINVAL ||
// Without threads check for EOPNOTSUPP
error == EOPNOTSUPP ||
#elif defined (sun)
// On sun, we need to check for ENOSR also.
error == ENOSR ||
// Without threads check for ENOTSUP
error == ENOTSUP ||
#elif defined (__FreeBSD__)
// On FreeBSD we need to check for EOPNOTSUPP (LinuxThreads) or
// ENOSYS (libc_r threads) also.
error == EOPNOTSUPP ||
error == ENOSYS ||
#elif defined (__OpenBSD__)
// OpenBSD appears to return EBADF.
error == EBADF ||
#endif /* ACE_WIN32 */
error == ENFILE)
return 1;
else
return 0;
}
u_int
ACE::major_version (void)
{
return ACE_MAJOR_VERSION;
}
u_int
ACE::minor_version (void)
{
return ACE_MINOR_VERSION;
}
u_int
ACE::beta_version (void)
{
return ACE_BETA_VERSION;
}
const ACE_TCHAR *
ACE::compiler_name (void)
{
#ifdef ACE_CC_NAME
return ACE_CC_NAME;
#else
return ACE_TEXT ("");
#endif
}
u_int
ACE::compiler_major_version (void)
{
#ifdef ACE_CC_MAJOR_VERSION
return ACE_CC_MAJOR_VERSION;
#else
return 0;
#endif
}
u_int
ACE::compiler_minor_version (void)
{
#ifdef ACE_CC_MINOR_VERSION
return ACE_CC_MINOR_VERSION;
#else
return 0;
#endif
}
u_int
ACE::compiler_beta_version (void)
{
#ifdef ACE_CC_BETA_VERSION
return ACE_CC_BETA_VERSION;
#else
return 0;
#endif
}
ACE_TCHAR
ACE::nibble2hex (u_int n)
{
// Yes, this works for UNICODE
return ACE_TEXT ("0123456789abcdef")[n & 0x0f];
}
bool
ACE::debug (void)
{
static const char* debug = ACE_OS::getenv ("ACELIB_DEBUG");
return (ACE::debug_ != 0) ? ACE::debug_ : (debug != 0 ? (*debug != '0') : false);
}
void
ACE::debug (bool onoff)
{
ACE::debug_ = onoff;
}
int
ACE::select (int width,
ACE_Handle_Set *readfds,
ACE_Handle_Set *writefds,
ACE_Handle_Set *exceptfds,
const ACE_Time_Value *timeout)
{
int result = ACE_OS::select (width,
readfds ? readfds->fdset () : 0,
writefds ? writefds->fdset () : 0,
exceptfds ? exceptfds->fdset () : 0,
timeout);
if (result > 0)
{
# if !defined (ACE_WIN32)
// This isn't needed for Windows... it's a no-op anyway.
if (readfds)
readfds->sync ((ACE_HANDLE) width);
if (writefds)
writefds->sync ((ACE_HANDLE) width);
if (exceptfds)
exceptfds->sync ((ACE_HANDLE) width);
#endif /* ACE_WIN32 */
}
return result;
}
int
ACE::select (int width,
ACE_Handle_Set &readfds,
const ACE_Time_Value *timeout)
{
int result = ACE_OS::select (width,
readfds.fdset (),
0,
0,
timeout);
#if !defined (ACE_WIN32)
if (result > 0)
readfds.sync ((ACE_HANDLE) width);
#endif /* ACE_WIN32 */
return result;
}
int
ACE::terminate_process (pid_t pid)
{
#if defined (ACE_HAS_PHARLAP)
ACE_UNUSED_ARG (pid);
ACE_NOTSUP_RETURN (-1);
#elif defined (ACE_WIN32)
// Create a handle for the given process id.
ACE_HANDLE process_handle =
::OpenProcess (PROCESS_TERMINATE,
FALSE, // New handle is not inheritable.
pid);
if (process_handle == ACE_INVALID_HANDLE
|| process_handle == 0)
return -1;
else
{
// Kill the process associated with process_handle.
BOOL terminate_result =
::TerminateProcess (process_handle, 0);
// Free up the kernel resources.
ACE_OS::close (process_handle);
return terminate_result ? 0 : -1;
}
#else
return ACE_OS::kill (pid, 9);
#endif /* ACE_HAS_PHARLAP */
}
int
ACE::process_active (pid_t pid)
{
#if !defined(ACE_WIN32)
if (ACE_OS::kill (pid, 0) == 0)
return 1;
else if (errno == ESRCH)
return 0;
else
return -1;
#else
// Create a handle for the given process id.
ACE_HANDLE process_handle =
::OpenProcess (PROCESS_QUERY_INFORMATION, FALSE, pid);
if (process_handle == ACE_INVALID_HANDLE || process_handle == 0)
return 0;
else
{
DWORD status;
int result = 1;
if (::GetExitCodeProcess (process_handle,
&status) == 0
|| status != STILL_ACTIVE)
result = 0;
::CloseHandle (process_handle);
return result;
}
#endif /* !ACE_WIN32 */
}
const ACE_TCHAR *
ACE::execname (const ACE_TCHAR *old_name)
{
#if defined (ACE_WIN32)
const ACE_TCHAR *suffix = ACE_OS::strrchr (old_name, ACE_TEXT ('.'));
if (suffix == 0 || ACE_OS::strcasecmp (suffix, ACE_TEXT (".exe")) != 0)
{
ACE_TCHAR *new_name = 0;
size_t size =
ACE_OS::strlen (old_name)
+ ACE_OS::strlen (ACE_TEXT (".exe"))
+ 1;
ACE_NEW_RETURN (new_name,
ACE_TCHAR[size],
0);
ACE_TCHAR *end = new_name;
end = ACE_OS::strecpy (new_name, old_name);
// Concatenate the .exe suffix onto the end of the executable.
// end points _after_ the terminating nul.
ACE_OS::strcpy (end - 1, ACE_TEXT (".exe"));
return new_name;
}
#endif /* ACE_WIN32 */
return old_name;
}
u_long
ACE::hash_pjw (const char *str, size_t len)
{
u_long hash = 0;
for (size_t i = 0; i < len; i++)
{
const char temp = str[i];
hash = (hash << 4) + (temp * 13);
u_long g = hash & 0xf0000000;
if (g)
{
hash ^= (g >> 24);
hash ^= g;
}
}
return hash;
}
u_long
ACE::hash_pjw (const char *str)
{
return ACE::hash_pjw (str, ACE_OS::strlen (str));
}
#if defined (ACE_HAS_WCHAR)
u_long
ACE::hash_pjw (const wchar_t *str, size_t len)
{
u_long hash = 0;
for (size_t i = 0; i < len; i++)
{
// @@ UNICODE: Does this function do the correct thing with wchar's?
const wchar_t temp = str[i];
hash = (hash << 4) + (temp * 13);
u_long g = hash & 0xf0000000;
if (g)
{
hash ^= (g >> 24);
hash ^= g;
}
}
return hash;
}
u_long
ACE::hash_pjw (const wchar_t *str)
{
return ACE::hash_pjw (str, ACE_OS::strlen (str));
}
#endif /* ACE_HAS_WCHAR */
ACE_TCHAR *
ACE::strenvdup (const ACE_TCHAR *str)
{
ACE_TRACE ("ACE::strenvdup");
return ACE_OS::strenvdup (str);
}
/*
Examples:
Source NT UNIX
==================================================================
netsvc netsvc.dll libnetsvc.so
(PATH will be (LD_LIBRARY_PATH
evaluated) evaluated)
libnetsvc.dll libnetsvc.dll libnetsvc.dll + warning
netsvc.so netsvc.so + warning libnetsvc.so
..\../libs/netsvc ..\..\libs\netsvc.dll ../../libs/netsvc.so
(absolute path used) (absolute path used)
*/
const ACE_TCHAR *
ACE::basename (const ACE_TCHAR *pathname, ACE_TCHAR delim)
{
ACE_TRACE ("ACE::basename");
const ACE_TCHAR *temp = ACE_OS::strrchr (pathname, delim);
if (temp == 0)
return pathname;
else
return temp + 1;
}
const ACE_TCHAR *
ACE::dirname (const ACE_TCHAR *pathname, ACE_TCHAR delim)
{
ACE_TRACE ("ACE::dirname");
static ACE_TCHAR return_dirname[MAXPATHLEN + 1];
const ACE_TCHAR *temp = ACE_OS::strrchr (pathname, delim);
if (temp == 0)
{
return_dirname[0] = '.';
return_dirname[1] = '\0';
return return_dirname;
}
else
{
// When the len is truncated, there are problems! This should
// not happen in normal circomstances
size_t len = temp - pathname + 1;
if (len > (sizeof return_dirname / sizeof (ACE_TCHAR)))
len = sizeof return_dirname / sizeof (ACE_TCHAR);
ACE_OS::strsncpy (return_dirname,
pathname,
len);
return return_dirname;
}
}
ssize_t
ACE::recv (ACE_HANDLE handle,
void *buf,
size_t len,
int flags,
const ACE_Time_Value *timeout)
{
if (timeout == 0)
return ACE_OS::recv (handle, (char *) buf, len, flags);
else
{
int val = 0;
if (ACE::enter_recv_timedwait (handle, timeout, val) ==-1)
return -1;
else
{
ssize_t bytes_transferred =
ACE_OS::recv (handle, (char *) buf, len, flags);
ACE::restore_non_blocking_mode (handle, val);
return bytes_transferred;
}
}
}
#if defined (ACE_HAS_TLI)
ssize_t
ACE::t_rcv (ACE_HANDLE handle,
void *buf,
size_t len,
int *flags,
const ACE_Time_Value *timeout)
{
if (timeout == 0)
return ACE_OS::t_rcv (handle, (char *) buf, len, flags);
else
{
int val = 0;
if (ACE::enter_recv_timedwait (handle, timeout, val) ==-1)
return -1;
else
{
ssize_t bytes_transferred =
ACE_OS::t_rcv (handle, (char *) buf, len, flags);
ACE::restore_non_blocking_mode (handle, val);
return bytes_transferred;
}
}
}
#endif /* ACE_HAS_TLI */
ssize_t
ACE::recv (ACE_HANDLE handle,
void *buf,
size_t n,
const ACE_Time_Value *timeout)
{
if (timeout == 0)
return ACE::recv_i (handle, buf, n);
else
{
int val = 0;
if (ACE::enter_recv_timedwait (handle, timeout, val) == -1)
return -1;
else
{
ssize_t bytes_transferred = ACE::recv_i (handle, buf, n);
ACE::restore_non_blocking_mode (handle, val);
return bytes_transferred;
}
}
}
ssize_t
ACE::recvmsg (ACE_HANDLE handle,
struct msghdr *msg,
int flags,
const ACE_Time_Value *timeout)
{
if (timeout == 0)
return ACE_OS::recvmsg (handle, msg, flags);
else
{
int val = 0;
if (ACE::enter_recv_timedwait (handle, timeout, val) == -1)
return -1;
else
{
ssize_t bytes_transferred = ACE_OS::recvmsg (handle, msg, flags);
ACE::restore_non_blocking_mode (handle, val);
return bytes_transferred;
}
}
}
ssize_t
ACE::recvfrom (ACE_HANDLE handle,
char *buf,
int len,
int flags,
struct sockaddr *addr,
int *addrlen,
const ACE_Time_Value *timeout)
{
if (timeout == 0)
return ACE_OS::recvfrom (handle, buf, len, flags, addr, addrlen);
else
{
int val = 0;
if (ACE::enter_recv_timedwait (handle, timeout, val) == -1)
return -1;
else
{
ssize_t bytes_transferred =
ACE_OS::recvfrom (handle, buf, len, flags, addr, addrlen);
ACE::restore_non_blocking_mode (handle, val);
return bytes_transferred;
}
}
}
ssize_t
ACE::recv_n_i (ACE_HANDLE handle,
void *buf,
size_t len,
int flags,
size_t *bt)
{
size_t temp;
size_t &bytes_transferred = bt == 0 ? temp : *bt;
ssize_t n;
for (bytes_transferred = 0;
bytes_transferred < len;
bytes_transferred += n)
{
// Try to transfer as much of the remaining data as possible.
n = ACE_OS::recv (handle,
static_cast <char *> (buf) + bytes_transferred,
len - bytes_transferred,
flags);
// Check EOF.
if (n == 0)
return 0;
// Check for other errors.
if (n == -1)
{
// Check for possible blocking.
if (errno == EWOULDBLOCK)
{
// Wait for the blocking to subside.
int const result = ACE::handle_read_ready (handle, 0);
// Did select() succeed?
if (result != -1)
{
// Blocking subsided. Continue data transfer.
n = 0;
continue;
}
}
// Other data transfer or select() failures.
return -1;
}
}
return static_cast<ssize_t> (bytes_transferred);
}
ssize_t
ACE::recv_n_i (ACE_HANDLE handle,
void *buf,
size_t len,
int flags,
const ACE_Time_Value *timeout,
size_t *bt)
{
size_t temp;
size_t &bytes_transferred = bt == 0 ? temp : *bt;
ssize_t n;
ssize_t result = 0;
int error = 0;
int val = 0;
ACE::record_and_set_non_blocking_mode (handle, val);
for (bytes_transferred = 0;
bytes_transferred < len;
bytes_transferred += n)
{
// Try to transfer as much of the remaining data as possible.
// Since the socket is in non-blocking mode, this call will not
// block.
n = ACE_OS::recv (handle,
static_cast <char *> (buf) + bytes_transferred,
len - bytes_transferred,
flags);
// Check for errors.
if (n == 0 ||
n == -1)
{
// Check for possible blocking.
if (n == -1 &&
errno == EWOULDBLOCK)
{
// Wait upto <timeout> for the blocking to subside.
int const rtn = ACE::handle_read_ready (handle, timeout);
// Did select() succeed?
if (rtn != -1)
{
// Blocking subsided in <timeout> period. Continue
// data transfer.
n = 0;
continue;
}
}
// Wait in select() timed out or other data transfer or
// select() failures.
error = 1;
result = n;
break;
}
}
ACE::restore_non_blocking_mode (handle, val);
if (error)
return result;
else
return static_cast<ssize_t> (bytes_transferred);
}
#if defined (ACE_HAS_TLI)
ssize_t
ACE::t_rcv_n_i (ACE_HANDLE handle,
void *buf,
size_t len,
int *flags,
size_t *bt)
{
size_t temp;
size_t &bytes_transferred = bt == 0 ? temp : *bt;
ssize_t n;
for (bytes_transferred = 0;
bytes_transferred < len;
bytes_transferred += n)
{
// Try to transfer as much of the remaining data as possible.
n = ACE_OS::t_rcv (handle,
(char *) buf + bytes_transferred,
len - bytes_transferred,
flags);
// Check EOF.
if (n == 0)
return 0;
// Check for other errors.
if (n == -1)
{
// Check for possible blocking.
if (errno == EWOULDBLOCK)
{
// Wait for the blocking to subside.
int const result = ACE::handle_read_ready (handle, 0);
// Did select() succeed?
if (result != -1)
{
// Blocking subsided. Continue data transfer.
n = 0;
continue;
}
}
// Other data transfer or select() failures.
return -1;
}
}
return bytes_transferred;
}
ssize_t
ACE::t_rcv_n_i (ACE_HANDLE handle,
void *buf,
size_t len,
int *flags,
const ACE_Time_Value *timeout,
size_t *bt)
{
size_t temp;
size_t &bytes_transferred = bt == 0 ? temp : *bt;
ssize_t n;
ssize_t result = 0;
int error = 0;
int val = 0;
ACE::record_and_set_non_blocking_mode (handle, val);
for (bytes_transferred = 0;
bytes_transferred < len;
bytes_transferred += n)
{
// Try to transfer as much of the remaining data as possible.
// Since the socket is in non-blocking mode, this call will not
// block.
n = ACE_OS::t_rcv (handle,
(char *) buf + bytes_transferred,
len - bytes_transferred,
flags);
// Check for errors.
if (n == 0 ||
n == -1)
{
// Check for possible blocking.
if (n == -1 &&
errno == EWOULDBLOCK)
{
// Wait upto <timeout> for the blocking to subside.
int const rtn = ACE::handle_read_ready (handle, timeout);
// Did select() succeed?
if (rtn != -1)
{
// Blocking subsided in <timeout> period. Continue
// data transfer.
n = 0;
continue;
}
}
// Wait in select() timed out or other data transfer or
// select() failures.
error = 1;
result = n;
break;
}
}
ACE::restore_non_blocking_mode (handle, val);
if (error)
return result;
else
return bytes_transferred;
}
#endif /* ACE_HAS_TLI */
ssize_t
ACE::recv_n_i (ACE_HANDLE handle,
void *buf,
size_t len,
size_t *bt)
{
size_t temp;
size_t &bytes_transferred = bt == 0 ? temp : *bt;
ssize_t n;
for (bytes_transferred = 0;
bytes_transferred < len;
bytes_transferred += n)
{
// Try to transfer as much of the remaining data as possible.
n = ACE::recv_i (handle,
static_cast <char *> (buf) + bytes_transferred,
len - bytes_transferred);
// Check EOF.
if (n == 0)
{
return 0;
}
// Check for other errors.
if (n == -1)
{
// Check for possible blocking.
if (errno == EWOULDBLOCK)
{
// Wait for the blocking to subside.
int const result = ACE::handle_read_ready (handle, 0);
// Did select() succeed?
if (result != -1)
{
// Blocking subsided. Continue data transfer.
n = 0;
continue;
}
}
// Other data transfer or select() failures.
return -1;
}
}
return static_cast<ssize_t> (bytes_transferred);
}
ssize_t
ACE::recv_n_i (ACE_HANDLE handle,
void *buf,
size_t len,
const ACE_Time_Value *timeout,
size_t *bt)
{
size_t temp;
size_t &bytes_transferred = bt == 0 ? temp : *bt;
ssize_t n;
ssize_t result = 0;
int error = 0;
int val = 0;
ACE::record_and_set_non_blocking_mode (handle, val);
for (bytes_transferred = 0;
bytes_transferred < len;
bytes_transferred += n)
{
// Try to transfer as much of the remaining data as possible.
// Since the socket is in non-blocking mode, this call will not
// block.
n = ACE::recv_i (handle,
static_cast <char *> (buf) + bytes_transferred,
len - bytes_transferred);
// Check for errors.
if (n == 0 ||
n == -1)
{
// Check for possible blocking.
if (n == -1 &&
errno == EWOULDBLOCK)
{
// Wait upto <timeout> for the blocking to subside.
int const rtn = ACE::handle_read_ready (handle, timeout);
// Did select() succeed?
if (rtn != -1)
{
// Blocking subsided in <timeout> period. Continue
// data transfer.
n = 0;
continue;
}
}
// Wait in select() timed out or other data transfer or
// select() failures.
error = 1;
result = n;
break;
}
}
ACE::restore_non_blocking_mode (handle, val);
if (error)
return result;
else
return static_cast<ssize_t> (bytes_transferred);
}
// This is basically an interface to ACE_OS::readv, that doesn't use
// the struct iovec explicitly. The ... can be passed as an arbitrary
// number of (char *ptr, int len) tuples. However, the count N is the
// *total* number of trailing arguments, *not* a couple of the number
// of tuple pairs!
ssize_t
ACE::recv (ACE_HANDLE handle, size_t n, ...)
{
va_list argp;
int const total_tuples = static_cast<int> (n / 2);
iovec *iovp = 0;
#if defined (ACE_HAS_ALLOCA)
iovp = (iovec *) alloca (total_tuples * sizeof (iovec));
#else
ACE_NEW_RETURN (iovp,
iovec[total_tuples],
-1);
#endif /* !defined (ACE_HAS_ALLOCA) */
va_start (argp, n);
for (int i = 0; i < total_tuples; i++)
{
iovp[i].iov_base = va_arg (argp, char *);
iovp[i].iov_len = va_arg (argp, int);
}
ssize_t const result = ACE_OS::recvv (handle, iovp, total_tuples);
#if !defined (ACE_HAS_ALLOCA)
delete [] iovp;
#endif /* !defined (ACE_HAS_ALLOCA) */
va_end (argp);
return result;
}
ssize_t
ACE::recvv (ACE_HANDLE handle,
iovec *iov,
int iovcnt,
const ACE_Time_Value *timeout)
{
if (timeout == 0)
return ACE_OS::recvv (handle, iov, iovcnt);
else
{
int val = 0;
if (ACE::enter_recv_timedwait (handle, timeout, val) == -1)
return -1;
else
{
ssize_t bytes_transferred = ACE_OS::recvv (handle, iov, iovcnt);
ACE::restore_non_blocking_mode (handle, val);
return bytes_transferred;
}
}
}
ssize_t
ACE::recvv_n_i (ACE_HANDLE handle,
iovec *iov,
int iovcnt,
size_t *bt)
{
size_t temp;
size_t &bytes_transferred = bt == 0 ? temp : *bt;
bytes_transferred = 0;
for (int s = 0; s < iovcnt; )
{
// Try to transfer as much of the remaining data as possible.
ssize_t n = ACE_OS::recvv (handle, iov + s, iovcnt - s);
// Check EOF.
if (n == 0)
return 0;
// Check for other errors.
if (n == -1)
{
// Check for possible blocking.
if (errno == EWOULDBLOCK)
{
// Wait for the blocking to subside.
int const result = ACE::handle_read_ready (handle, 0);
// Did select() succeed?
if (result != -1)
{
// Blocking subsided. Continue data transfer.
n = 0;
continue;
}
}
// Other data transfer or select() failures.
return -1;
}
for (bytes_transferred += n;
s < iovcnt
&& n >= static_cast<ssize_t> (iov[s].iov_len);
s++)
n -= iov[s].iov_len;
if (n != 0)
{
char *base = static_cast<char *> (iov[s].iov_base);
iov[s].iov_base = base + n;
// This blind cast is safe because n < iov_len, after above loop.
iov[s].iov_len = iov[s].iov_len - static_cast<u_long> (n);
}
}
return ACE_Utils::truncate_cast<ssize_t> (bytes_transferred);
}
ssize_t
ACE::recvv_n_i (ACE_HANDLE handle,
iovec *iov,
int iovcnt,
const ACE_Time_Value *timeout,
size_t *bt)
{
size_t temp;
size_t &bytes_transferred = bt == 0 ? temp : *bt;
bytes_transferred = 0;
ssize_t result = 0;
int error = 0;
int val = 0;
ACE::record_and_set_non_blocking_mode (handle, val);
for (int s = 0; s < iovcnt; )
{
// Try to transfer as much of the remaining data as possible.
// Since the socket is in non-blocking mode, this call will not
// block.
ssize_t n = ACE_OS::recvv (handle, iov + s, iovcnt - s);
// Check for errors.
if (n == 0 || n == -1)
{
// Check for possible blocking.
if (n == -1 && errno == EWOULDBLOCK)
{
// Wait upto <timeout> for the blocking to subside.
int const rtn = ACE::handle_read_ready (handle, timeout);
// Did select() succeed?
if (rtn != -1)
{
// Blocking subsided in <timeout> period. Continue
// data transfer.
n = 0;
continue;
}
}
// Wait in select() timed out or other data transfer or
// select() failures.
error = 1;
result = n;
break;
}
for (bytes_transferred += n;
s < iovcnt
&& n >= static_cast<ssize_t> (iov[s].iov_len);
s++)
n -= iov[s].iov_len;
if (n != 0)
{
char *base = reinterpret_cast<char *> (iov[s].iov_base);
iov[s].iov_base = base + n;
// This blind cast is safe because n < iov_len, after above loop.
iov[s].iov_len = iov[s].iov_len - static_cast<u_long> (n);
}
}
ACE::restore_non_blocking_mode (handle, val);
if (error)
{
return result;
}
else
{
return ACE_Utils::truncate_cast<ssize_t> (bytes_transferred);
}
}
ssize_t
ACE::recv_n (ACE_HANDLE handle,
ACE_Message_Block *message_block,
const ACE_Time_Value *timeout,
size_t *bt)
{
size_t temp;
size_t &bytes_transferred = bt == 0 ? temp : *bt;
bytes_transferred = 0;
iovec iov[ACE_IOV_MAX];
int iovcnt = 0;
while (message_block != 0)
{
// Our current message block chain.
const ACE_Message_Block *current_message_block = message_block;
while (current_message_block != 0)
{
size_t current_message_block_length =
current_message_block->length ();
char *this_rd_ptr = current_message_block->rd_ptr ();
// Check if this block has any space for incoming data.
while (current_message_block_length > 0)
{
u_long const this_chunk_length =
ACE_Utils::truncate_cast<u_long> (
current_message_block_length);
// Collect the data in the iovec.
iov[iovcnt].iov_base = this_rd_ptr;
iov[iovcnt].iov_len = this_chunk_length;
current_message_block_length -= this_chunk_length;
this_rd_ptr += this_chunk_length;
// Increment iovec counter.
++iovcnt;
// The buffer is full make a OS call. @@ TODO find a way to
// find ACE_IOV_MAX for platforms that do not define it rather
// than simply setting ACE_IOV_MAX to some arbitrary value such
// as 16.
if (iovcnt == ACE_IOV_MAX)
{
size_t current_transfer = 0;
ssize_t const result = ACE::recvv_n (handle,
iov,
iovcnt,
timeout,
&current_transfer);
// Add to total bytes transferred.
bytes_transferred += current_transfer;
// Errors.
if (result == -1 || result == 0)
return result;
// Reset iovec counter.
iovcnt = 0;
}
}
// Select the next message block in the chain.
current_message_block = current_message_block->cont ();
}
// Selection of the next message block chain.
message_block = message_block->next ();
}
// Check for remaining buffers to be sent. This will happen when
// ACE_IOV_MAX is not a multiple of the number of message blocks.
if (iovcnt != 0)
{
size_t current_transfer = 0;
ssize_t const result = ACE::recvv_n (handle,
iov,
iovcnt,
timeout,
&current_transfer);
// Add to total bytes transferred.
bytes_transferred += current_transfer;
// Errors.
if (result == -1 || result == 0)
{
return result;
}
}
// Return total bytes transferred.
return ACE_Utils::truncate_cast<ssize_t> (bytes_transferred);
}
ssize_t
ACE::send (ACE_HANDLE handle,
const void *buf,
size_t n,
int flags,
const ACE_Time_Value *timeout)
{
if (timeout == 0)
return ACE_OS::send (handle, (const char *) buf, n, flags);
else
{
int val = 0;
if (ACE::enter_send_timedwait (handle, timeout, val) == -1)
return -1;
else
{
ssize_t const bytes_transferred =
ACE_OS::send (handle, (const char *) buf, n, flags);
ACE::restore_non_blocking_mode (handle, val);
return bytes_transferred;
}
}
}
#if defined (ACE_HAS_TLI)
ssize_t
ACE::t_snd (ACE_HANDLE handle,
const void *buf,
size_t n,
int flags,
const ACE_Time_Value *timeout)
{
if (timeout == 0)
return ACE_OS::t_snd (handle, (const char *) buf, n, flags);
else
{
int val = 0;
if (ACE::enter_send_timedwait (handle, timeout, val) == -1)
return -1;
else
{
ssize_t const bytes_transferred =
ACE_OS::t_snd (handle, (const char *) buf, n, flags);
ACE::restore_non_blocking_mode (handle, val);
return bytes_transferred;
}
}
}
#endif /* ACE_HAS_TLI */
ssize_t
ACE::send (ACE_HANDLE handle,
const void *buf,
size_t n,
const ACE_Time_Value *timeout)
{
if (timeout == 0)
return ACE::send_i (handle, buf, n);
else
{
int val = 0;
if (ACE::enter_send_timedwait (handle, timeout, val) == -1)
return -1;
else
{
ssize_t const bytes_transferred = ACE::send_i (handle, buf, n);
ACE::restore_non_blocking_mode (handle, val);
return bytes_transferred;
}
}
}
ssize_t
ACE::sendmsg (ACE_HANDLE handle,
const struct msghdr *msg,
int flags,
const ACE_Time_Value *timeout)
{
if (timeout == 0)
return ACE_OS::sendmsg (handle, msg, flags);
else
{
int val = 0;
if (ACE::enter_send_timedwait (handle, timeout, val) == -1)
return -1;
else
{
ssize_t const bytes_transferred =
ACE_OS::sendmsg (handle, msg, flags);
ACE::restore_non_blocking_mode (handle, val);
return bytes_transferred;
}
}
}
ssize_t
ACE::sendto (ACE_HANDLE handle,
const char *buf,
int len,
int flags,
const struct sockaddr *addr,
int addrlen,
const ACE_Time_Value *timeout)
{
if (timeout == 0)
return ACE_OS::sendto (handle, buf, len, flags, addr, addrlen);
else
{
int val = 0;
if (ACE::enter_send_timedwait (handle, timeout, val) == -1)
return -1;
else
{
ssize_t const bytes_transferred =
ACE_OS::sendto (handle, buf, len, flags, addr, addrlen);
ACE::restore_non_blocking_mode (handle, val);
return bytes_transferred;
}
}
}
ssize_t
ACE::send_n_i (ACE_HANDLE handle,
const void *buf,
size_t len,
int flags,
size_t *bt)
{
size_t temp;
size_t &bytes_transferred = bt == 0 ? temp : *bt;
ssize_t n;
for (bytes_transferred = 0;
bytes_transferred < len;
bytes_transferred += n)
{
// Try to transfer as much of the remaining data as possible.
n = ACE_OS::send (handle,
(char *) buf + bytes_transferred,
len - bytes_transferred,
flags);
// Check EOF.
if (n == 0)
return 0;
// Check for other errors.
if (n == -1)
{
// Check for possible blocking.
#if defined (ACE_WIN32)
if (errno == EWOULDBLOCK) // If enobufs no need to loop
#else
if (errno == EWOULDBLOCK || errno == ENOBUFS)
#endif /* ACE_WIN32 */
{
// Wait for the blocking to subside.
int const result = ACE::handle_write_ready (handle, 0);
// Did select() succeed?
if (result != -1)
{
// Blocking subsided. Continue data transfer.
n = 0;
continue;
}
}
// Other data transfer or select() failures.
return -1;
}
}
return ACE_Utils::truncate_cast<ssize_t> (bytes_transferred);
}
ssize_t
ACE::send_n_i (ACE_HANDLE handle,
const void *buf,
size_t len,
int flags,
const ACE_Time_Value *timeout,
size_t *bt)
{
size_t temp;
size_t &bytes_transferred = bt == 0 ? temp : *bt;
ssize_t n;
ssize_t result = 0;
int error = 0;
int val = 0;
ACE::record_and_set_non_blocking_mode (handle, val);
for (bytes_transferred = 0;
bytes_transferred < len;
bytes_transferred += n)
{
// Try to transfer as much of the remaining data as possible.
// Since the socket is in non-blocking mode, this call will not
// block.
n = ACE_OS::send (handle,
(char *) buf + bytes_transferred,
len - bytes_transferred,
flags);
// Check for errors.
if (n == 0 ||
n == -1)
{
// Check for possible blocking.
if (n == -1 && (errno == EWOULDBLOCK || errno == ENOBUFS))
{
// Wait upto <timeout> for the blocking to subside.
int const rtn = ACE::handle_write_ready (handle, timeout);
// Did select() succeed?
if (rtn != -1)
{
// Blocking subsided in <timeout> period. Continue
// data transfer.
n = 0;
continue;
}
}
// Wait in select() timed out or other data transfer or
// select() failures.
error = 1;
result = n;
break;
}
}
ACE::restore_non_blocking_mode (handle, val);
if (error)
{
return result;
}
else
{
return ACE_Utils::truncate_cast<ssize_t> (bytes_transferred);
}
}
#if defined (ACE_HAS_TLI)
ssize_t
ACE::t_snd_n_i (ACE_HANDLE handle,
const void *buf,
size_t len,
int flags,
size_t *bt)
{
size_t temp;
size_t &bytes_transferred = bt == 0 ? temp : *bt;
ssize_t n;
for (bytes_transferred = 0;
bytes_transferred < len;
bytes_transferred += n)
{
// Try to transfer as much of the remaining data as possible.
n = ACE_OS::t_snd (handle,
(char *) buf + bytes_transferred,
len - bytes_transferred,
flags);
// Check EOF.
if (n == 0)
return 0;
// Check for other errors.
if (n == -1)
{
// Check for possible blocking.
if (errno == EWOULDBLOCK || errno == ENOBUFS)
{
// Wait for the blocking to subside.
int const result = ACE::handle_write_ready (handle, 0);
// Did select() succeed?
if (result != -1)
{
// Blocking subsided. Continue data transfer.
n = 0;
continue;
}
}
// Other data transfer or select() failures.
return -1;
}
}
return bytes_transferred;
}
ssize_t
ACE::t_snd_n_i (ACE_HANDLE handle,
const void *buf,
size_t len,
int flags,
const ACE_Time_Value *timeout,
size_t *bt)
{
size_t temp;
size_t &bytes_transferred = bt == 0 ? temp : *bt;
ssize_t n;
ssize_t result = 0;
int error = 0;
int val = 0;
ACE::record_and_set_non_blocking_mode (handle, val);
for (bytes_transferred = 0;
bytes_transferred < len;
bytes_transferred += n)
{
// Try to transfer as much of the remaining data as possible.
// Since the socket is in non-blocking mode, this call will not
// block.
n = ACE_OS::t_snd (handle,
(char *) buf + bytes_transferred,
len - bytes_transferred,
flags);
// Check for errors.
if (n == 0 ||
n == -1)
{
// Check for possible blocking.
if (n == -1 &&
(errno == EWOULDBLOCK || errno == ENOBUFS))
{
// Wait upto <timeout> for the blocking to subside.
int const rtn = ACE::handle_write_ready (handle, timeout);
// Did select() succeed?
if (rtn != -1)
{
// Blocking subsided in <timeout> period. Continue
// data transfer.
n = 0;
continue;
}
}
// Wait in select() timed out or other data transfer or
// select() failures.
error = 1;
result = n;
break;
}
}
ACE::restore_non_blocking_mode (handle, val);
if (error)
return result;
else
return bytes_transferred;
}
#endif /* ACE_HAS_TLI */
ssize_t
ACE::send_n_i (ACE_HANDLE handle,
const void *buf,
size_t len,
size_t *bt)
{
size_t temp;
size_t &bytes_transferred = bt == 0 ? temp : *bt;
ssize_t n;
for (bytes_transferred = 0;
bytes_transferred < len;
bytes_transferred += n)
{
// Try to transfer as much of the remaining data as possible.
n = ACE::send_i (handle,
(char *) buf + bytes_transferred,
len - bytes_transferred);
// Check EOF.
if (n == 0)
{
return 0;
}
// Check for other errors.
if (n == -1)
{
// Check for possible blocking.
if (errno == EWOULDBLOCK || errno == ENOBUFS)
{
// Wait for the blocking to subside.
int const result = ACE::handle_write_ready (handle, 0);
// Did select() succeed?
if (result != -1)
{
// Blocking subsided. Continue data transfer.
n = 0;
continue;
}
}
// Other data transfer or select() failures.
return -1;
}
}
return ACE_Utils::truncate_cast<ssize_t> (bytes_transferred);
}
ssize_t
ACE::send_n_i (ACE_HANDLE handle,
const void *buf,
size_t len,
const ACE_Time_Value *timeout,
size_t *bt)
{
size_t temp;
size_t &bytes_transferred = bt == 0 ? temp : *bt;
ssize_t n;
ssize_t result = 0;
int error = 0;
int val = 0;
ACE::record_and_set_non_blocking_mode (handle, val);
for (bytes_transferred = 0;
bytes_transferred < len;
bytes_transferred += n)
{
// Try to transfer as much of the remaining data as possible.
// Since the socket is in non-blocking mode, this call will not
// block.
n = ACE::send_i (handle,
(char *) buf + bytes_transferred,
len - bytes_transferred);
// Check for errors.
if (n == 0 ||
n == -1)
{
// Check for possible blocking.
if (n == -1 &&
(errno == EWOULDBLOCK || errno == ENOBUFS))
{
// Wait upto <timeout> for the blocking to subside.
int const rtn = ACE::handle_write_ready (handle, timeout);
// Did select() succeed?
if (rtn != -1)
{
// Blocking subsided in <timeout> period. Continue
// data transfer.
n = 0;
continue;
}
}
// Wait in select() timed out or other data transfer or
// select() failures.
error = 1;
result = n;
break;
}
}
ACE::restore_non_blocking_mode (handle, val);
if (error)
{
return result;
}
else
{
return ACE_Utils::truncate_cast<ssize_t> (bytes_transferred);
}
}
// Send N char *ptrs and int lengths. Note that the char *'s precede
// the ints (basically, an varargs version of writev). The count N is
// the *total* number of trailing arguments, *not* a couple of the
// number of tuple pairs!
ssize_t
ACE::send (ACE_HANDLE handle, size_t n, ...)
{
va_list argp;
int total_tuples = static_cast<int> (n / 2);
iovec *iovp;
#if defined (ACE_HAS_ALLOCA)
iovp = (iovec *) alloca (total_tuples * sizeof (iovec));
#else
ACE_NEW_RETURN (iovp,
iovec[total_tuples],
-1);
#endif /* !defined (ACE_HAS_ALLOCA) */
va_start (argp, n);
for (int i = 0; i < total_tuples; i++)
{
iovp[i].iov_base = va_arg (argp, char *);
iovp[i].iov_len = va_arg (argp, int);
}
ssize_t result = ACE_OS::sendv (handle, iovp, total_tuples);
#if !defined (ACE_HAS_ALLOCA)
delete [] iovp;
#endif /* !defined (ACE_HAS_ALLOCA) */
va_end (argp);
return result;
}
ssize_t
ACE::sendv (ACE_HANDLE handle,
const iovec *iov,
int iovcnt,
const ACE_Time_Value *timeout)
{
if (timeout == 0)
return ACE_OS::sendv (handle, iov, iovcnt);
else
{
int val = 0;
if (ACE::enter_send_timedwait (handle, timeout, val) == -1)
return -1;
else
{
ssize_t bytes_transferred = ACE_OS::sendv (handle, iov, iovcnt);
ACE::restore_non_blocking_mode (handle, val);
return bytes_transferred;
}
}
}
ssize_t
ACE::sendv_n_i (ACE_HANDLE handle,
const iovec *i,
int iovcnt,
size_t *bt)
{
size_t temp;
size_t &bytes_transferred = bt == 0 ? temp : *bt;
bytes_transferred = 0;
iovec *iov = const_cast<iovec *> (i);
for (int s = 0;
s < iovcnt;
)
{
// Try to transfer as much of the remaining data as possible.
ssize_t n = ACE_OS::sendv (handle, iov + s, iovcnt - s);
// Check EOF.
if (n == 0)
return 0;
// Check for other errors.
if (n == -1)
{
// Check for possible blocking.
if (errno == EWOULDBLOCK || errno == ENOBUFS)
{
// Wait for the blocking to subside.
int const result = ACE::handle_write_ready (handle, 0);
// Did select() succeed?
if (result != -1)
{
// Blocking subsided. Continue data transfer.
n = 0;
continue;
}
}
// Other data transfer or select() failures.
return -1;
}
for (bytes_transferred += n;
s < iovcnt
&& n >= static_cast<ssize_t> (iov[s].iov_len);
s++)
n -= iov[s].iov_len;
if (n != 0)
{
char *base = reinterpret_cast<char *> (iov[s].iov_base);
iov[s].iov_base = base + n;
// This blind cast is safe because n < iov_len, after above loop.
iov[s].iov_len = iov[s].iov_len - static_cast<u_long> (n);
}
}
return ACE_Utils::truncate_cast<ssize_t> (bytes_transferred);
}
ssize_t
ACE::sendv_n_i (ACE_HANDLE handle,
const iovec *i,
int iovcnt,
const ACE_Time_Value *timeout,
size_t *bt)
{
size_t temp;
size_t &bytes_transferred = bt == 0 ? temp : *bt;
bytes_transferred = 0;
ssize_t result = 0;
int error = 0;
int val = 0;
ACE::record_and_set_non_blocking_mode (handle, val);
iovec *iov = const_cast<iovec *> (i);
for (int s = 0;
s < iovcnt;
)
{
// Try to transfer as much of the remaining data as possible.
// Since the socket is in non-blocking mode, this call will not
// block.
ssize_t n = ACE_OS::sendv (handle, iov + s, iovcnt - s);
// Check for errors.
if (n == 0 ||
n == -1)
{
// Check for possible blocking.
if (n == -1 &&
(errno == EWOULDBLOCK || errno == ENOBUFS))
{
// Wait upto <timeout> for the blocking to subside.
int const rtn = ACE::handle_write_ready (handle, timeout);
// Did select() succeed?
if (rtn != -1)
{
// Blocking subsided in <timeout> period. Continue
// data transfer.
n = 0;
continue;
}
}
// Wait in select() timed out or other data transfer or
// select() failures.
error = 1;
result = n;
break;
}
for (bytes_transferred += n;
s < iovcnt
&& n >= static_cast<ssize_t> (iov[s].iov_len);
s++)
n -= iov[s].iov_len;
if (n != 0)
{
char *base = reinterpret_cast<char *> (iov[s].iov_base);
iov[s].iov_base = base + n;
// This blind cast is safe because n < iov_len, after above loop.
iov[s].iov_len = iov[s].iov_len - static_cast<u_long> (n);
}
}
ACE::restore_non_blocking_mode (handle, val);
if (error)
{
return result;
}
else
{
return ACE_Utils::truncate_cast<ssize_t> (bytes_transferred);
}
}
ssize_t
ACE::write_n (ACE_HANDLE handle,
const ACE_Message_Block *message_block,
size_t *bt)
{
size_t temp;
size_t &bytes_transferred = bt == 0 ? temp : *bt;
bytes_transferred = 0;
iovec iov[ACE_IOV_MAX];
int iovcnt = 0;
while (message_block != 0)
{
// Our current message block chain.
const ACE_Message_Block *current_message_block = message_block;
while (current_message_block != 0)
{
size_t current_message_block_length =
current_message_block->length ();
char *this_block_ptr = current_message_block->rd_ptr ();
// Check if this block has any data to be sent.
while (current_message_block_length > 0)
{
u_long const this_chunk_length =
ACE_Utils::truncate_cast<u_long> (
current_message_block_length);
// Collect the data in the iovec.
iov[iovcnt].iov_base = this_block_ptr;
iov[iovcnt].iov_len = this_chunk_length;
current_message_block_length -= this_chunk_length;
this_block_ptr += this_chunk_length;
// Increment iovec counter.
++iovcnt;
// The buffer is full make a OS call. @@ TODO find a way to
// find ACE_IOV_MAX for platforms that do not define it rather
// than simply setting ACE_IOV_MAX to some arbitrary value such
// as 16.
if (iovcnt == ACE_IOV_MAX)
{
size_t current_transfer = 0;
ssize_t const result = ACE::writev_n (handle,
iov,
iovcnt,
&current_transfer);
// Add to total bytes transferred.
bytes_transferred += current_transfer;
// Errors.
if (result == -1 || result == 0)
return result;
// Reset iovec counter.
iovcnt = 0;
}
}
// Select the next message block in the chain.
current_message_block = current_message_block->cont ();
}
// Selection of the next message block chain.
message_block = message_block->next ();
}
// Check for remaining buffers to be sent. This will happen when
// ACE_IOV_MAX is not a multiple of the number of message blocks.
if (iovcnt != 0)
{
size_t current_transfer = 0;
ssize_t const result = ACE::writev_n (handle,
iov,
iovcnt,
&current_transfer);
// Add to total bytes transferred.
bytes_transferred += current_transfer;
// Errors.
if (result == -1 || result == 0)
return result;
}
// Return total bytes transferred.
return ACE_Utils::truncate_cast<ssize_t> (bytes_transferred);
}
ssize_t
ACE::send_n (ACE_HANDLE handle,
const ACE_Message_Block *message_block,
const ACE_Time_Value *timeout,
size_t *bt)
{
size_t temp;
size_t &bytes_transferred = bt == 0 ? temp : *bt;
bytes_transferred = 0;
iovec iov[ACE_IOV_MAX];
int iovcnt = 0;
while (message_block != 0)
{
// Our current message block chain.
const ACE_Message_Block *current_message_block = message_block;
while (current_message_block != 0)
{
char *this_block_ptr = current_message_block->rd_ptr ();
size_t current_message_block_length =
current_message_block->length ();
// Check if this block has any data to be sent.
while (current_message_block_length > 0)
{
u_long const this_chunk_length =
ACE_Utils::truncate_cast<u_long> (
current_message_block_length);
// Collect the data in the iovec.
iov[iovcnt].iov_base = this_block_ptr;
iov[iovcnt].iov_len = this_chunk_length;
current_message_block_length -= this_chunk_length;
this_block_ptr += this_chunk_length;
// Increment iovec counter.
++iovcnt;
// The buffer is full make a OS call. @@ TODO find a way to
// find ACE_IOV_MAX for platforms that do not define it rather
// than simply setting ACE_IOV_MAX to some arbitrary value such
// as 16.
if (iovcnt == ACE_IOV_MAX)
{
size_t current_transfer = 0;
ssize_t const result = ACE::sendv_n (handle,
iov,
iovcnt,
timeout,
&current_transfer);
// Add to total bytes transferred.
bytes_transferred += current_transfer;
// Errors.
if (result == -1 || result == 0)
return result;
// Reset iovec counter.
iovcnt = 0;
}
}
// Select the next message block in the chain.
current_message_block = current_message_block->cont ();
}
// Selection of the next message block chain.
message_block = message_block->next ();
}
// Check for remaining buffers to be sent. This will happen when
// ACE_IOV_MAX is not a multiple of the number of message blocks.
if (iovcnt != 0)
{
size_t current_transfer = 0;
ssize_t const result = ACE::sendv_n (handle,
iov,
iovcnt,
timeout,
&current_transfer);
// Add to total bytes transferred.
bytes_transferred += current_transfer;
// Errors.
if (result == -1 || result == 0)
{
return result;
}
}
// Return total bytes transferred.
return ACE_Utils::truncate_cast<ssize_t> (bytes_transferred);
}
ssize_t
ACE::readv_n (ACE_HANDLE handle,
iovec *iov,
int iovcnt,
size_t *bt)
{
size_t temp;
size_t &bytes_transferred = bt == 0 ? temp : *bt;
bytes_transferred = 0;
for (int s = 0;
s < iovcnt;
)
{
ssize_t n = ACE_OS::readv (handle,
iov + s,
iovcnt - s);
if (n == -1 || n == 0)
return n;
for (bytes_transferred += n;
s < iovcnt
&& n >= static_cast<ssize_t> (iov[s].iov_len);
s++)
n -= iov[s].iov_len;
if (n != 0)
{
char *base = reinterpret_cast<char *> (iov[s].iov_base);
iov[s].iov_base = base + n;
// This blind cast is safe because n < iov_len, after above loop.
iov[s].iov_len = iov[s].iov_len - static_cast<u_long> (n);
}
}
return ACE_Utils::truncate_cast<ssize_t> (bytes_transferred);
}
ssize_t
ACE::writev_n (ACE_HANDLE handle,
const iovec *i,
int iovcnt,
size_t *bt)
{
size_t temp;
size_t &bytes_transferred = bt == 0 ? temp : *bt;
bytes_transferred = 0;
iovec *iov = const_cast<iovec *> (i);
for (int s = 0;
s < iovcnt;
)
{
ssize_t n = ACE_OS::writev (handle,
iov + s,
iovcnt - s);
if (n == -1 || n == 0)
{
return n;
}
for (bytes_transferred += n;
s < iovcnt
&& n >= static_cast<ssize_t> (iov[s].iov_len);
s++)
n -= iov[s].iov_len;
if (n != 0)
{
char *base = reinterpret_cast<char *> (iov[s].iov_base);
iov[s].iov_base = base + n;
// This blind cast is safe because n < iov_len, after above loop.
iov[s].iov_len = iov[s].iov_len - static_cast<u_long> (n);
}
}
return ACE_Utils::truncate_cast<ssize_t> (bytes_transferred);
}
int
ACE::handle_ready (ACE_HANDLE handle,
const ACE_Time_Value *timeout,
int read_ready,
int write_ready,
int exception_ready)
{
#if defined (ACE_HAS_POLL)
ACE_UNUSED_ARG (exception_ready);
struct pollfd fds;
fds.fd = handle;
fds.events = read_ready ? POLLIN : 0;
if( write_ready )
{
fds.events |= POLLOUT;
}
fds.revents = 0;
int const result = ACE_OS::poll (&fds, 1, timeout);
#else
ACE_Handle_Set handle_set;
handle_set.set_bit (handle);
// Wait for data or for the timeout to elapse.
int select_width = 0;
#if !defined (ACE_WIN32)
select_width = int (handle) + 1;
# endif /* ACE_WIN64 */
int result = ACE_OS::select (select_width,
read_ready ? handle_set.fdset () : 0, // read_fds.
write_ready ? handle_set.fdset () : 0, // write_fds.
exception_ready ? handle_set.fdset () : 0, // exception_fds.
timeout);
#endif /* ACE_HAS_POLL */
switch (result)
{
case 0: // Timer expired.
errno = ETIME;
/* FALLTHRU */
case -1: // we got here directly - select() returned -1.
return -1;
case 1: // Handle has data.
/* FALLTHRU */
default: // default is case result > 0; return a
// ACE_ASSERT (result == 1);
return result;
}
}
int
ACE::enter_recv_timedwait (ACE_HANDLE handle,
const ACE_Time_Value *timeout,
int &val)
{
int const result = ACE::handle_read_ready (handle, timeout);
if (result == -1)
return -1;
ACE::record_and_set_non_blocking_mode (handle, val);
return result;
}
int
ACE::enter_send_timedwait (ACE_HANDLE handle,
const ACE_Time_Value *timeout,
int &val)
{
int const result = ACE::handle_write_ready (handle, timeout);
if (result == -1)
return -1;
ACE::record_and_set_non_blocking_mode (handle, val);
return result;
}
void
ACE::record_and_set_non_blocking_mode (ACE_HANDLE handle, int &val)
{
// We need to record whether we are already *in* nonblocking mode,
// so that we can correctly reset the state when we're done.
val = ACE::get_flags (handle);
if (ACE_BIT_DISABLED (val, ACE_NONBLOCK))
// Set the handle into non-blocking mode if it's not already in
// it.
ACE::set_flags (handle, ACE_NONBLOCK);
}
void
ACE::restore_non_blocking_mode (ACE_HANDLE handle, int val)
{
if (ACE_BIT_DISABLED (val, ACE_NONBLOCK))
{
// Save/restore errno.
ACE_Errno_Guard error (errno);
// Only disable ACE_NONBLOCK if we weren't in non-blocking mode
// originally.
ACE::clr_flags (handle, ACE_NONBLOCK);
}
}
/// Format buffer into printable format. This is useful for debugging.
/// Portions taken from mdump by J.P. Knight (J.P.Knight@lut.ac.uk)
/// Modifications by Todd Montgomery.
size_t
ACE::format_hexdump (const char *buffer,
size_t size,
ACE_TCHAR *obuf,
size_t obuf_sz)
{
ACE_TRACE ("ACE::format_hexdump");
u_char c;
ACE_TCHAR textver[16 + 1];
// We can fit 16 bytes output in text mode per line, 4 chars per byte.
size_t maxlen = (obuf_sz / 68) * 16;
if (size > maxlen)
size = maxlen;
size_t i;
size_t const lines = size / 16;
for (i = 0; i < lines; i++)
{
size_t j;
for (j = 0 ; j < 16; j++)
{
c = (u_char) buffer[(i << 4) + j]; // or, buffer[i*16+j]
ACE_OS::sprintf (obuf,
ACE_TEXT ("%02x "),
c);
obuf += 3;
if (j == 7)
{
ACE_OS::sprintf (obuf,
ACE_TEXT (" "));
++obuf;
}
textver[j] = ACE_OS::ace_isprint (c) ? c : u_char ('.');
}
textver[j] = 0;
ACE_OS::sprintf (obuf,
#if !defined (ACE_WIN32) && defined (ACE_USES_WCHAR)
ACE_TEXT (" %ls\n"),
#else
ACE_TEXT (" %s\n"),
#endif
textver);
while (*obuf != '\0')
++obuf;
}
if (size % 16)
{
for (i = 0 ; i < size % 16; i++)
{
c = (u_char) buffer[size - size % 16 + i];
ACE_OS::sprintf (obuf,
ACE_TEXT ("%02x "),
c);
obuf += 3;
if (i == 7)
{
ACE_OS::sprintf (obuf,
ACE_TEXT (" "));
++obuf;
}
textver[i] = ACE_OS::ace_isprint (c) ? c : u_char ('.');
}
for (i = size % 16; i < 16; i++)
{
ACE_OS::sprintf (obuf,
ACE_TEXT (" "));
obuf += 3;
if (i == 7)
{
ACE_OS::sprintf (obuf,
ACE_TEXT (" "));
++obuf;
}
textver[i] = ' ';
}
textver[i] = 0;
ACE_OS::sprintf (obuf,
#if !defined (ACE_WIN32) && defined (ACE_USES_WCHAR)
ACE_TEXT (" %ls\n"),
#else
ACE_TEXT (" %s\n"),
#endif
textver);
}
return size;
}
// Returns the current timestamp in the form
// "hour:minute:second:microsecond." The month, day, and year are
// also stored in the beginning of the date_and_time array
// using ISO-8601 format.
ACE_TCHAR *
ACE::timestamp (ACE_TCHAR date_and_time[],
size_t date_and_timelen,
bool return_pointer_to_first_digit)
{
return ACE::timestamp (ACE_Time_Value::zero,
date_and_time,
date_and_timelen,
return_pointer_to_first_digit);
}
// Returns the given timestamp in the form
// "hour:minute:second:microsecond." The month, day, and year are
// also stored in the beginning of the date_and_time array
// using ISO-8601 format.
// 012345678901234567890123456
// 2010-12-02 12:56:00.123456<nul>
ACE_TCHAR *
ACE::timestamp (const ACE_Time_Value& time_value,
ACE_TCHAR date_and_time[],
size_t date_and_timelen,
bool return_pointer_to_first_digit)
{
//ACE_TRACE ("ACE::timestamp");
// This magic number is from the formatting statement
// farther down this routine.
if (date_and_timelen < 27)
{
errno = EINVAL;
return 0;
}
ACE_Time_Value cur_time =
(time_value == ACE_Time_Value::zero) ?
ACE_Time_Value (ACE_OS::gettimeofday ()) : time_value;
time_t secs = cur_time.sec ();
struct tm tms;
ACE_OS::localtime_r (&secs, &tms);
ACE_OS::snprintf (date_and_time,
date_and_timelen,
ACE_TEXT ("%4.4d-%2.2d-%2.2d %2.2d:%2.2d:%2.2d.%06ld"),
tms.tm_year + 1900,
tms.tm_mon + 1,
tms.tm_mday,
tms.tm_hour,
tms.tm_min,
tms.tm_sec,
static_cast<long> (cur_time.usec()));
date_and_time[date_and_timelen - 1] = '\0';
return &date_and_time[10 + (return_pointer_to_first_digit != 0)];
}
// This function rounds the request to a multiple of the page size.
size_t
ACE::round_to_pagesize (size_t len)
{
ACE_TRACE ("ACE::round_to_pagesize");
if (ACE::pagesize_ == 0)
ACE::pagesize_ = ACE_OS::getpagesize ();
return (len + (ACE::pagesize_ - 1)) & ~(ACE::pagesize_ - 1);
}
size_t
ACE::round_to_allocation_granularity (size_t len)
{
ACE_TRACE ("ACE::round_to_allocation_granularity");
if (ACE::allocation_granularity_ == 0)
ACE::allocation_granularity_ = ACE_OS::allocation_granularity ();
return (len + (ACE::allocation_granularity_ - 1)) & ~(ACE::allocation_granularity_ - 1);
}
ACE_HANDLE
ACE::handle_timed_complete (ACE_HANDLE h,
const ACE_Time_Value *timeout,
int is_tli)
{
ACE_TRACE ("ACE::handle_timed_complete");
#if !defined (ACE_WIN32) && defined (ACE_HAS_POLL)
struct pollfd fds;
fds.fd = h;
fds.events = POLLIN | POLLOUT;
fds.revents = 0;
#else
ACE_Handle_Set rd_handles;
ACE_Handle_Set wr_handles;
rd_handles.set_bit (h);
wr_handles.set_bit (h);
#endif /* !ACE_WIN32 && ACE_HAS_POLL */
#if defined (ACE_WIN32)
// Winsock is different - it sets the exception bit for failed connect,
// unlike other platforms, where the write bit is set for both success
// and fail.
ACE_Handle_Set ex_handles;
ex_handles.set_bit (h);
#endif /* ACE_WIN32 */
bool need_to_check = false;
bool known_failure = false;
#if defined (ACE_WIN32)
int n = ACE_OS::select (0, // Ignored on Windows: int (h) + 1,
0,
wr_handles,
ex_handles,
timeout);
#else
# if defined (ACE_HAS_POLL)
int n = ACE_OS::poll (&fds, 1, timeout);
# else
int n = 0;
if (is_tli)
n = ACE_OS::select (int (h) + 1,
rd_handles,
wr_handles,
0,
timeout);
else
n = ACE_OS::select (int (h) + 1,
0,
wr_handles,
0,
timeout);
# endif /* ACE_HAS_POLL */
#endif /* ACE_WIN32 */
// If we failed to connect within the time period allocated by the
// caller, then we fail (e.g., the remote host might have been too
// busy to accept our call).
if (n <= 0)
{
if (n == 0 && timeout != 0)
errno = ETIME;
return ACE_INVALID_HANDLE;
}
// On Windows, a ready-for-write handle is successfully connected, and
// ready-for-exception is a failure. On fails, we need to grab the error
// code via getsockopt.
// On BSD sockets using select(), the handle becomes writable on
// completion either success or fail, so if the select() does not time
// out, we need to check for success/fail.
// It is believed that TLI sockets use the readable=fail, writeable=success
// but that hasn't been as well tested.
#if defined (ACE_WIN32)
ACE_UNUSED_ARG (is_tli);
// On Win32, ex_handle set indicates a failure. We'll do the check
// to try and get an errno value, but the connect failed regardless of
// what getsockopt says about the error.
if (ex_handles.is_set (h))
{
need_to_check = true;
known_failure = true;
}
#else
if (is_tli)
# if defined (ACE_HAS_POLL)
need_to_check = (fds.revents & POLLIN) && !(fds.revents & POLLOUT);
# else
need_to_check = rd_handles.is_set (h) && !wr_handles.is_set (h);
# endif /* ACE_HAS_POLL */
else
# if defined (ACE_HAS_POLL)
{
// The "official" bit for failed connect is POLLIN. However, POLLERR
// is often set and there are occasional cases seen with some kernels
// where only POLLERR is set on a failed connect.
need_to_check = (fds.revents & POLLIN) || (fds.revents & POLLERR);
known_failure = (fds.revents & POLLERR);
}
# else
need_to_check = true;
# endif /* ACE_HAS_POLL */
#endif /* ACE_WIN32 */
if (need_to_check)
{
#if defined (SOL_SOCKET) && defined (SO_ERROR)
int sock_err = 0;
int sock_err_len = sizeof (sock_err);
int sockopt_ret = ACE_OS::getsockopt (h, SOL_SOCKET, SO_ERROR,
(char *)&sock_err, &sock_err_len);
if (sockopt_ret < 0)
{
h = ACE_INVALID_HANDLE;
}
if (sock_err != 0 || known_failure)
{
h = ACE_INVALID_HANDLE;
errno = sock_err;
}
#else
char dummy;
// The following recv() won't block provided that the
// ACE_NONBLOCK flag has not been turned off .
n = ACE::recv (h, &dummy, 1, MSG_PEEK);
// If no data was read/peeked at, check to see if it's because
// of a non-connected socket (and therefore an error) or there's
// just no data yet.
if (n <= 0)
{
if (n == 0)
{
errno = ECONNREFUSED;
h = ACE_INVALID_HANDLE;
}
else if (errno != EWOULDBLOCK && errno != EAGAIN)
h = ACE_INVALID_HANDLE;
}
#endif
}
// 1. The HANDLE is ready for writing and doesn't need to be checked or
// 2. recv() returned an indication of the state of the socket - if there is
// either data present, or a recv is legit but there's no data yet,
// the connection was successfully established.
return h;
}
// Wait up to <timeout> amount of time to accept a connection.
int
ACE::handle_timed_accept (ACE_HANDLE listener,
ACE_Time_Value *timeout,
bool restart)
{
ACE_TRACE ("ACE::handle_timed_accept");
// Make sure we don't bomb out on erroneous values.
if (listener == ACE_INVALID_HANDLE)
return -1;
#if defined (ACE_HAS_POLL)
struct pollfd fds;
fds.fd = listener;
fds.events = POLLIN;
fds.revents = 0;
#else
// Use the select() implementation rather than poll().
ACE_Handle_Set rd_handle;
rd_handle.set_bit (listener);
#endif /* ACE_HAS_POLL */
// We need a loop here if <restart> is enabled.
for (;;)
{
#if defined (ACE_HAS_POLL)
int n = ACE_OS::poll (&fds, 1, timeout);
#else
int select_width = 0;
# if !defined (ACE_WIN32)
select_width = int (listener) + 1;
# endif /* ACE_WIN32 */
int n = ACE_OS::select (select_width,
rd_handle, 0, 0,
timeout);
#endif /* ACE_HAS_POLL */
switch (n)
{
case -1:
if (errno == EINTR && restart)
continue;
else
return -1;
/* NOTREACHED */
case 0:
if (timeout != 0 && *timeout == ACE_Time_Value::zero)
errno = EWOULDBLOCK;
else
errno = ETIMEDOUT;
return -1;
/* NOTREACHED */
case 1:
return 0;
/* NOTREACHED */
default:
errno = EINVAL;
return -1;
/* NOTREACHED */
}
}
}
// Make the current process a UNIX daemon. This is based on Stevens
// code from APUE.
int
ACE::daemonize (const ACE_TCHAR pathname[],
bool close_all_handles,
const ACE_TCHAR program_name[])
{
ACE_TRACE ("ACE::daemonize");
#if !defined (ACE_LACKS_FORK)
pid_t pid = ACE_OS::fork ();
if (pid == -1)
return -1;
else if (pid != 0)
ACE_OS::exit (0); // Parent exits.
// 1st child continues.
ACE_OS::setsid (); // Become session leader.
ACE_OS::signal (SIGHUP, SIG_IGN);
pid = ACE_OS::fork (program_name);
if (pid != 0)
ACE_OS::exit (0); // First child terminates.
// Second child continues.
if (pathname != 0)
// change working directory.
ACE_OS::chdir (pathname);
ACE_OS::umask (0); // clear our file mode creation mask.
// Close down the I/O handles.
if (close_all_handles)
{
for (int i = ACE::max_handles () - 1; i >= 0; i--)
ACE_OS::close (i);
int fd = ACE_OS::open ("/dev/null", O_RDWR, 0);
if (fd != -1)
{
ACE_OS::dup2 (fd, ACE_STDIN);
ACE_OS::dup2 (fd, ACE_STDOUT);
ACE_OS::dup2 (fd, ACE_STDERR);
if (fd > ACE_STDERR)
ACE_OS::close (fd);
}
}
return 0;
#else
ACE_UNUSED_ARG (pathname);
ACE_UNUSED_ARG (close_all_handles);
ACE_UNUSED_ARG (program_name);
ACE_NOTSUP_RETURN (-1);
#endif /* ACE_LACKS_FORK */
}
pid_t
ACE::fork (const ACE_TCHAR *program_name,
int avoid_zombies)
{
if (avoid_zombies == 0)
return ACE_OS::fork (program_name);
else
{
// This algorithm is adapted from an example in the Stevens book
// "Advanced Programming in the Unix Environment" and an item in
// Andrew Gierth's Unix Programming FAQ. It creates an orphan
// process that's inherited by the init process; init cleans up
// when the orphan process terminates.
//
// Another way to avoid zombies is to ignore or catch the
// SIGCHLD signal; we don't use that approach here.
pid_t pid = ACE_OS::fork ();
if (pid == 0)
{
// The child process forks again to create a grandchild.
switch (ACE_OS::fork (program_name))
{
case 0: // grandchild returns 0.
return 0;
case -1: // assumes all errnos are < 256
ACE_OS::_exit (errno);
default: // child terminates, orphaning grandchild
ACE_OS::_exit (0);
}
}
// Parent process waits for child to terminate.
ACE_exitcode status;
if (pid < 0 || ACE_OS::waitpid (pid, &status, 0) < 0)
return -1;
// child terminated by calling exit()?
if (WIFEXITED ((status)))
{
// child terminated normally?
if (WEXITSTATUS ((status)) == 0)
return 1;
else
errno = WEXITSTATUS ((status));
}
else
// child didn't call exit(); perhaps it received a signal?
errno = EINTR;
return -1;
}
}
int
ACE::max_handles (void)
{
ACE_TRACE ("ACE::max_handles");
#if defined (RLIMIT_NOFILE) && !defined (ACE_LACKS_RLIMIT)
rlimit rl;
int const r = ACE_OS::getrlimit (RLIMIT_NOFILE, &rl);
# if !defined (RLIM_INFINITY)
if (r == 0)
return rl.rlim_cur;
# else
if (r == 0 && rl.rlim_cur != RLIM_INFINITY)
return rl.rlim_cur;
// If == RLIM_INFINITY, fall through to the ACE_LACKS_RLIMIT sections
# endif /* RLIM_INFINITY */
#endif /* RLIMIT_NOFILE && !ACE_LACKS_RLIMIT */
#if defined (_SC_OPEN_MAX)
return static_cast<int> (ACE_OS::sysconf (_SC_OPEN_MAX));
#elif defined (FD_SETSIZE)
return FD_SETSIZE;
#else
ACE_NOTSUP_RETURN (-1);
#endif /* _SC_OPEN_MAX */
}
// Set the number of currently open handles in the process.
//
// If NEW_LIMIT == -1 set the limit to the maximum allowable.
// Otherwise, set it to be the value of NEW_LIMIT.
int
ACE::set_handle_limit (int new_limit,
int increase_limit_only)
{
ACE_TRACE ("ACE::set_handle_limit");
int cur_limit = ACE::max_handles ();
int max_limit = cur_limit;
if (cur_limit == -1)
return -1;
#if !defined (ACE_LACKS_RLIMIT) && defined (RLIMIT_NOFILE)
struct rlimit rl;
ACE_OS::memset ((void *) &rl, 0, sizeof rl);
int r = ACE_OS::getrlimit (RLIMIT_NOFILE, &rl);
if (r == 0)
max_limit = rl.rlim_max;
#endif /* ACE_LACKS_RLIMIT */
if (new_limit == -1)
new_limit = max_limit;
if (new_limit < 0)
{
errno = EINVAL;
return -1;
}
else if (new_limit > cur_limit)
{
// Increase the limit.
#if !defined (ACE_LACKS_RLIMIT) && defined (RLIMIT_NOFILE)
rl.rlim_cur = new_limit;
return ACE_OS::setrlimit (RLIMIT_NOFILE, &rl);
#elif !defined (RLIMIT_NOFILE)
return 0;
#else
// Must return EINVAL errno.
ACE_NOTSUP_RETURN (-1);
#endif /* ACE_LACKS_RLIMIT */
}
else if (increase_limit_only == 0)
{
// Decrease the limit.
#if !defined (ACE_LACKS_RLIMIT) && defined (RLIMIT_NOFILE)
rl.rlim_cur = new_limit;
return ACE_OS::setrlimit (RLIMIT_NOFILE, &rl);
#else
// We give a chance to platforms without RLIMIT to work.
// Instead of ACE_NOTSUP_RETURN (0), just return 0 because
// new_limit is <= cur_limit, so it's a no-op.
return 0;
#endif /* ACE_LACKS_RLIMIT */
}
return 0;
}
// Euclid's greatest common divisor algorithm.
u_long
ACE::gcd (u_long x, u_long y)
{
while (y != 0)
{
u_long r = x % y;
x = y;
y = r;
}
return x;
}
// Calculates the minimum enclosing frame size for the given values.
u_long
ACE::minimum_frame_size (u_long period1, u_long period2)
{
// if one of the periods is zero, treat it as though it as
// uninitialized and return the other period as the frame size
if (0 == period1)
{
return period2;
}
if (0 == period2)
{
return period1;
}
// if neither is zero, find the greatest common divisor of the two periods
u_long greatest_common_divisor = ACE::gcd (period1, period2);
// explicitly consider cases to reduce risk of possible overflow errors
if (greatest_common_divisor == 1)
{
// periods are relative primes: just multiply them together
return period1 * period2;
}
else if (greatest_common_divisor == period1)
{
// the first period divides the second: return the second
return period2;
}
else if (greatest_common_divisor == period2)
{
// the second period divides the first: return the first
return period1;
}
else
{
// the current frame size and the entry's effective period
// have a non-trivial greatest common divisor: return the
// product of factors divided by those in their gcd.
return (period1 * period2) / greatest_common_divisor;
}
}
u_long
ACE::is_prime (const u_long n,
const u_long min_factor,
const u_long max_factor)
{
if (n > 3)
for (u_long factor = min_factor;
factor <= max_factor;
++factor)
if (n / factor * factor == n)
return factor;
return 0;
}
const ACE_TCHAR *
ACE::sock_error (int error)
{
#if defined (ACE_WIN32)
static ACE_TCHAR unknown_msg[64];
switch (error)
{
case WSAVERNOTSUPPORTED:
return ACE_TEXT ("version of WinSock not supported");
/* NOTREACHED */
case WSASYSNOTREADY:
return ACE_TEXT ("WinSock not present or not responding");
/* NOTREACHED */
case WSAEINVAL:
return ACE_TEXT ("app version not supported by DLL");
/* NOTREACHED */
case WSAHOST_NOT_FOUND:
return ACE_TEXT ("Authoritive: Host not found");
/* NOTREACHED */
case WSATRY_AGAIN:
return ACE_TEXT ("Non-authoritive: host not found or server failure");
/* NOTREACHED */
case WSANO_RECOVERY:
return ACE_TEXT ("Non-recoverable: refused or not implemented");
/* NOTREACHED */
case WSANO_DATA:
return ACE_TEXT ("Valid name, no data record for type");
/* NOTREACHED */
/*
case WSANO_ADDRESS:
return "Valid name, no MX record";
*/
case WSANOTINITIALISED:
return ACE_TEXT ("WSA Startup not initialized");
/* NOTREACHED */
case WSAENETDOWN:
return ACE_TEXT ("Network subsystem failed");
/* NOTREACHED */
case WSAEINPROGRESS:
return ACE_TEXT ("Blocking operation in progress");
/* NOTREACHED */
case WSAEINTR:
return ACE_TEXT ("Blocking call cancelled");
/* NOTREACHED */
case WSAEAFNOSUPPORT:
return ACE_TEXT ("address family not supported");
/* NOTREACHED */
case WSAEMFILE:
return ACE_TEXT ("no file handles available");
/* NOTREACHED */
case WSAENOBUFS:
return ACE_TEXT ("no buffer space available");
/* NOTREACHED */
case WSAEPROTONOSUPPORT:
return ACE_TEXT ("specified protocol not supported");
/* NOTREACHED */
case WSAEPROTOTYPE:
return ACE_TEXT ("protocol wrong type for this socket");
/* NOTREACHED */
case WSAESOCKTNOSUPPORT:
return ACE_TEXT ("socket type not supported for address family");
/* NOTREACHED */
case WSAENOTSOCK:
return ACE_TEXT ("handle is not a socket");
/* NOTREACHED */
case WSAEWOULDBLOCK:
return ACE_TEXT ("resource temporarily unavailable");
/* NOTREACHED */
case WSAEADDRINUSE:
return ACE_TEXT ("address already in use");
/* NOTREACHED */
case WSAECONNABORTED:
return ACE_TEXT ("connection aborted");
/* NOTREACHED */
case WSAECONNRESET:
return ACE_TEXT ("connection reset");
/* NOTREACHED */
case WSAENOTCONN:
return ACE_TEXT ("not connected");
/* NOTREACHED */
case WSAETIMEDOUT:
return ACE_TEXT ("connection timed out");
/* NOTREACHED */
case WSAECONNREFUSED:
return ACE_TEXT ("connection refused");
/* NOTREACHED */
case WSAEHOSTDOWN:
return ACE_TEXT ("host down");
/* NOTREACHED */
case WSAEHOSTUNREACH:
return ACE_TEXT ("host unreachable");
/* NOTREACHED */
case WSAEADDRNOTAVAIL:
return ACE_TEXT ("address not available");
/* NOTREACHED */
case WSAEISCONN:
return ACE_TEXT ("socket is already connected");
/* NOTREACHED */
case WSAENETRESET:
return ACE_TEXT ("network dropped connection on reset");
/* NOTREACHED */
case WSAEMSGSIZE:
return ACE_TEXT ("message too long");
/* NOTREACHED */
case WSAENETUNREACH:
return ACE_TEXT ("network is unreachable");
/* NOTREACHED */
case WSAEFAULT:
return ACE_TEXT ("bad address");
/* NOTREACHED */
case WSAEDISCON:
return ACE_TEXT ("graceful shutdown in progress");
/* NOTREACHED */
case WSAEACCES:
return ACE_TEXT ("permission denied");
/* NOTREACHED */
case WSAESHUTDOWN:
return ACE_TEXT ("cannot send after socket shutdown");
/* NOTREACHED */
case WSAEPROCLIM:
return ACE_TEXT ("too many processes");
/* NOTREACHED */
case WSAEALREADY:
return ACE_TEXT ("operation already in progress");
/* NOTREACHED */
case WSAEPFNOSUPPORT:
return ACE_TEXT ("protocol family not supported");
/* NOTREACHED */
case WSAENOPROTOOPT:
return ACE_TEXT ("bad protocol option");
/* NOTREACHED */
case WSATYPE_NOT_FOUND:
return ACE_TEXT ("class type not found");
/* NOTREACHED */
case WSAEOPNOTSUPP:
return ACE_TEXT ("operation not supported");
/* NOTREACHED */
case WSAEDESTADDRREQ:
return ACE_TEXT ("destination address required");
/* NOTREACHED */
default:
ACE_OS::sprintf (unknown_msg, ACE_TEXT ("unknown error: %d"), error);
return unknown_msg;
/* NOTREACHED */
}
#else
ACE_UNUSED_ARG (error);
ACE_NOTSUP_RETURN (0);
#endif /* ACE_WIN32 */
}
bool
ACE::is_sock_error (int error)
{
#if defined (ACE_WIN32)
switch (error)
{
case WSAVERNOTSUPPORTED:
case WSASYSNOTREADY:
case WSAEINVAL:
case WSAHOST_NOT_FOUND:
case WSATRY_AGAIN:
case WSANO_RECOVERY:
case WSANO_DATA:
/*
case WSANO_ADDRESS:
*/
case WSANOTINITIALISED:
case WSAENETDOWN:
case WSAEINPROGRESS:
case WSAEINTR:
case WSAEAFNOSUPPORT:
case WSAEMFILE:
case WSAENOBUFS:
case WSAEPROTONOSUPPORT:
case WSAEPROTOTYPE:
case WSAESOCKTNOSUPPORT:
case WSAENOTSOCK:
case WSAEWOULDBLOCK:
case WSAEADDRINUSE:
case WSAECONNABORTED:
case WSAECONNRESET:
case WSAENOTCONN:
case WSAETIMEDOUT:
case WSAECONNREFUSED:
case WSAEHOSTDOWN:
case WSAEHOSTUNREACH:
case WSAEADDRNOTAVAIL:
case WSAEISCONN:
case WSAENETRESET:
case WSAEMSGSIZE:
case WSAENETUNREACH:
case WSAEFAULT:
case WSAEDISCON:
case WSAEACCES:
case WSAESHUTDOWN:
case WSAEPROCLIM:
case WSAEALREADY:
case WSAEPFNOSUPPORT:
case WSAENOPROTOOPT:
case WSATYPE_NOT_FOUND:
case WSAEOPNOTSUPP:
return true;
}
#else
ACE_UNUSED_ARG (error);
#endif /* ACE_WIN32 */
return false;
}
char *
ACE::strndup (const char *str, size_t n)
{
const char *t = str;
size_t len;
// Figure out how long this string is (remember, it might not be
// NUL-terminated).
for (len = 0;
len < n && *t++ != '\0';
len++)
continue;
char *s;
ACE_ALLOCATOR_RETURN (s,
(char *) ACE_OS::malloc (len + 1),
0);
return ACE_OS::strsncpy (s, str, len + 1);
}
#if defined (ACE_HAS_WCHAR)
wchar_t *
ACE::strndup (const wchar_t *str, size_t n)
{
const wchar_t *t = str;
size_t len;
// Figure out how long this string is (remember, it might not be
// NUL-terminated).
for (len = 0;
len < n && *t++ != '\0';
len++)
continue;
wchar_t *s;
ACE_ALLOCATOR_RETURN (s,
static_cast<wchar_t *> (
ACE_OS::malloc ((len + 1) * sizeof (wchar_t))),
0);
return ACE_OS::strsncpy (s, str, len + 1);
}
#endif /* ACE_HAS_WCHAR */
char *
ACE::strnnew (const char *str, size_t n)
{
const char *t = str;
size_t len;
// Figure out how long this string is (remember, it might not be
// NUL-terminated).
for (len = 0;
len < n && *t++ != L'\0';
len++)
continue;
char *s;
ACE_NEW_RETURN (s,
char[len + 1],
0);
return ACE_OS::strsncpy (s, str, len + 1);
}
#if defined (ACE_HAS_WCHAR)
wchar_t *
ACE::strnnew (const wchar_t *str, size_t n)
{
const wchar_t *t = str;
size_t len;
// Figure out how long this string is (remember, it might not be
// NUL-terminated).
for (len = 0;
len < n && *t++ != ACE_TEXT_WIDE ('\0');
len++)
continue;
wchar_t *s;
ACE_NEW_RETURN (s,
wchar_t[len + 1],
0);
return ACE_OS::strsncpy (s, str, len + 1);
}
#endif /* ACE_HAS_WCHAR */
const char *
ACE::strend (const char *s)
{
while (*s++ != '\0')
continue;
return s;
}
#if defined ACE_HAS_WCHAR
const wchar_t *
ACE::strend (const wchar_t *s)
{
while (*s++ != ACE_TEXT_WIDE ('\0'))
continue;
return s;
}
#endif
char *
ACE::strnew (const char *s)
{
if (s == 0)
return 0;
char *t = 0;
ACE_NEW_RETURN (t,
char [ACE_OS::strlen (s) + 1],
0);
return ACE_OS::strcpy (t, s);
}
#if defined (ACE_HAS_WCHAR)
wchar_t *
ACE::strnew (const wchar_t *s)
{
if (s == 0)
return 0;
wchar_t *t = 0;
ACE_NEW_RETURN (t,
wchar_t[ACE_OS::strlen (s) + 1],
0);
return ACE_OS::strcpy (t, s);
}
#endif /* ACE_HAS_WCHAR */
// helper functions for ACE::wild_match()
namespace
{
inline bool equal_char (char a, char b, bool case_sensitive)
{
if (case_sensitive)
return a == b;
return ACE_OS::ace_tolower (a) == ACE_OS::ace_tolower (b);
}
// precond: *p == '[' start of char class
// postcond: *p == ']' end of the char class
inline bool equal_class (char s, const char *&p, bool case_sensitive)
{
++p;
bool negate = false;
if (*p == '!')
{
negate = true;
++p;
}
// ] and - are regular in 1st position
for (bool first = true; *p && (first || *p != ']'); ++p)
{
if (!first && *p == '-' && p[1] != ']')
{
if (!p[1] || p[1] <= p[-1]) // invalid range
{
continue;
}
// Since we are in the POSIX locale, only the basic ASCII
// characters are allowed as the range endpoints. These characters
// are the same values in both signed and unsigned chars so we
// don't have to account for any "pathological cases."
for (char range = static_cast<char> (p[-1] + 1); range <= p[1]; ++range)
{
if (equal_char (s, range, case_sensitive))
{
while (*++p != ']') {}
return !negate;
}
}
++p; // consume the character 1 past the -
}
else if (equal_char (s, *p, case_sensitive))
{
while (*++p != ']') {}
return !negate;
}
first = false;
}
return negate;
}
}
bool
ACE::wild_match(const char *str, const char *pat, bool case_sensitive,
bool character_classes)
{
if (str == pat)
return true;
if (pat == 0 || str == 0)
return false;
bool star = false, escape = false;
const char *s = str;
const char *p = pat;
while (*s != '\0')
{
if (!escape && *p == '\\')
{
++p;
escape = true;
}
else if (!escape && *p == '*')
{
star = true;
pat = p;
while (*++pat == '*') {}
if (*pat == '\0')
return true;
p = pat;
}
else if (!escape && *p == '?')
{
++s;
++p;
}
else if (!escape && character_classes && *p == '[')
{
if (equal_class (*s, p, case_sensitive))
{
++p;
}
else
{
if (!star)
return false;
p = pat;
}
++s;
}
else if (!equal_char (*s, *p, case_sensitive))
{
if (!star)
return false;
++s;
p = pat;
escape = false;
}
else
{
++s;
++p;
escape = false;
}
}
if (*p == '*')
while (*++p == '*') {}
return *p == '\0';
}
// Close versioned namespace, if enabled by the user.
ACE_END_VERSIONED_NAMESPACE_DECL
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