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hexchat/plugins/dns/thread.c

112 lines
1.5 KiB
C

#include <stdlib.h>
#define USE_PTHREAD
#ifdef WIN32
#include <windows.h>
#define pthread_t DWORD
#define pipe(a) _pipe(a,4096,_O_BINARY)
#else
#ifdef USE_PTHREAD
#include <pthread.h>
#else
#include <sys/types.h>
#include <sys/wait.h>
#include <signal.h>
#define pthread_t int
#endif
#endif
typedef struct
{
pthread_t threadid;
int pipe_fd[2];
void *userdata;
} thread;
thread *
thread_new (void)
{
thread *th;
th = calloc (1, sizeof (*th));
if (!th)
return NULL;
if (pipe (th->pipe_fd) == -1)
{
free (th);
return NULL;
}
#ifdef __EMX__ /* os/2 */
setmode (pipe_fd[0], O_BINARY);
setmode (pipe_fd[1], O_BINARY);
#endif
return th;
}
int
thread_start (thread *th, void *(*start_routine)(void *), void *arg)
{
pthread_t id;
#ifdef WIN32
CloseHandle (CreateThread (NULL, 0,
(LPTHREAD_START_ROUTINE)start_routine,
arg, 0, (DWORD *)&id));
#else
#ifdef USE_PTHREAD
if (pthread_create (&id, NULL, start_routine, arg) != 0)
return 0;
#else
switch (id = fork ())
{
case -1:
return 0;
case 0:
/* this is the child */
setuid (getuid ());
start_routine (arg);
_exit (0);
}
#endif
#endif
th->threadid = id;
return 1;
}
/*void
thread_kill (thread *th)
{
#ifdef WIN32
PostThreadMessage (th->threadid, WM_QUIT, 0, 0);
#else
#ifdef USE_PTHREAD
pthread_cancel (th->threadid);
pthread_join (th->threadid, (void *)&th);
#else
kill (th->threadid, SIGKILL);
waitpid (th->threadid, NULL, 0);
#endif
#endif
}
void
thread_free (thread *th)
{
close (th->pipe_fd[0]);
close (th->pipe_fd[1]);
free (th);
}*/