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Added fallback syscalls for epoll functions.

This commit is contained in:
Alexandre Julliard 2004-10-27 01:03:30 +00:00
parent b3f2c53155
commit 626aa3366f
1 changed files with 60 additions and 4 deletions
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64
server/fd.c
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@ -36,9 +36,6 @@
#ifdef HAVE_STDINT_H
#include <stdint.h>
#endif
#ifdef HAVE_SYS_EPOLL_H
#include <sys/epoll.h>
#endif
#include <sys/stat.h>
#include <sys/time.h>
#include <sys/types.h>
@ -55,8 +52,67 @@
#include "winternl.h"
#if defined(HAVE_SYS_EPOLL_H) && defined(HAVE_EPOLL_CREATE)
# include <sys/epoll.h>
# define USE_EPOLL
#endif
#elif defined(linux) && defined(__i386__) && defined(HAVE_STDINT_H)
# define USE_EPOLL
# define EPOLLIN POLLIN
# define EPOLLOUT POLLOUT
# define EPOLLERR POLLERR
# define EPOLLHUP POLLHUP
# define EPOLL_CTL_ADD 1
# define EPOLL_CTL_DEL 2
# define EPOLL_CTL_MOD 3
typedef union epoll_data
{
void *ptr;
int fd;
uint32_t u32;
uint64_t u64;
} epoll_data_t;
struct epoll_event
{
uint32_t events;
epoll_data_t data;
};
#define SYSCALL_RET(ret) do { \
if (ret < 0) { errno = -ret; ret = -1; } \
return ret; \
} while(0)
static inline int epoll_create( int size )
{
int ret;
__asm__( "pushl %%ebx; movl %2,%%ebx; int $0x80; popl %%ebx"
: "=a" (ret) : "0" (254 /*NR_epoll_create*/), "g" (size) );
SYSCALL_RET(ret);
}
static inline int epoll_ctl( int epfd, int op, int fd, const struct epoll_event *event )
{
int ret;
__asm__( "pushl %%ebx; movl %2,%%ebx; int $0x80; popl %%ebx"
: "=a" (ret)
: "0" (255 /*NR_epoll_ctl*/), "g" (epfd), "c" (op), "d" (fd), "S" (event), "m" (*event) );
SYSCALL_RET(ret);
}
static inline int epoll_wait( int epfd, struct epoll_event *events, int maxevents, int timeout )
{
int ret;
__asm__( "pushl %%ebx; movl %2,%%ebx; int $0x80; popl %%ebx"
: "=a" (ret)
: "0" (256 /*NR_epoll_wait*/), "g" (epfd), "c" (events), "d" (maxevents), "S" (timeout)
: "memory" );
SYSCALL_RET(ret);
}
#undef SYSCALL_RET
#endif /* linux && __i386__ && HAVE_STDINT_H */
/* Because of the stupid Posix locking semantics, we need to keep
* track of all file descriptors referencing a given file, and not