pa/eqemu-server
2
0
Fork 0
mirror of https://github.com/EQEmu/Server.git synced 2026-01-07 06:13:52 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

IPCMutex needed to be rewritten for Linux due to an annoying limitation of posix semaphores that makes encapping them moronic

Browse Source
This commit is contained in:
KimLS 2013-02-22 23:40:16 -08:00
parent 8c425ff9d8
commit 86c8b11102
1 changed files with 20 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

45
common/ipc_mutex.cpp
View File

@ -20,11 +20,9 @@
#ifdef _WINDOWS
#include <Windows.h>
#else
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <semaphore.h>
#include <unistd.h>
#include <time.h>
#include <fcntl.h>
#endif
#include "types.h"
#include "eqemu_exception.h"
@ -35,7 +33,7 @@ namespace EQEmu {
#ifdef _WINDOWS
HANDLE mut_;
#else
sem_t *sem_;
int fd_;
#endif
};
@ -53,11 +51,14 @@ namespace EQEmu {
EQ_EXCEPT("IPC Mutex", "Could not create mutex.");
}
#else
std::string final_name = "/EQEmuMutex_";
final_name += name;
std::string final_name = name;
final_name += ".lock";
imp_->sem_ = sem_open(final_name.c_str(), O_CREAT, S_IRUSR | S_IWUSR, 1);
if(imp_->sem_ == SEM_FAILED) {
imp_->fd_ = open(final_name.c_str(),
O_RDWR | O_CREAT | O_CLOEXEC,
S_IRUSR | S_IWUSR);
if(imp_->fd_ == -1) {
EQ_EXCEPT("IPC Mutex", "Could not create mutex.");
}
#endif
@ -65,19 +66,17 @@ namespace EQEmu {
IPCMutex::~IPCMutex() {
#ifdef _WINDOWS
if(imp_->mut_) {
if(locked_) {
ReleaseMutex(imp_->mut_);
}
CloseHandle(imp_->mut_);
if(locked_) {
ReleaseMutex(imp_->mut_);
}
CloseHandle(imp_->mut_);
#else
if(imp_->sem_) {
if(locked_) {
sem_post(imp_->sem_);
}
sem_close(imp_->sem_);
if(locked_) {
lockf(imp_->fd_, F_ULOCK, 0);
}
close(imp_->fd_);
#endif
delete imp_;
}
@ -93,9 +92,7 @@ namespace EQEmu {
return false;
}
#else
if(sem_wait(imp_->sem_) == -1) {
return false;
}
lockf(imp_->fd_, F_TLOCK, 0);
#endif
locked_ = true;
return true;
@ -110,9 +107,7 @@ namespace EQEmu {
return false;
}
#else
if(sem_post(imp_->sem_) == -1) {
return false;
}
lockf(imp_->fd_, F_ULOCK, 0);
#endif
locked_ = false;
return true;