nginx/src/os/unix/ngx_freebsd_rfork_thread.h

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/*
* Copyright (C) Igor Sysoev
*/
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#ifndef _NGX_FREEBSD_RFORK_THREAD_H_INCLUDED_
#define _NGX_FREEBSD_RFORK_THREAD_H_INCLUDED_
#include <sys/ipc.h>
#include <sys/sem.h>
#include <sched.h>
typedef pid_t ngx_tid_t;
#define ngx_log_pid ngx_thread_self()
#define ngx_log_tid 0
#define NGX_TID_T_FMT "%P"
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#define NGX_MUTEX_LIGHT 1
#define NGX_MUTEX_LOCK_BUSY 0x80000000
typedef volatile struct {
ngx_atomic_t lock;
ngx_log_t *log;
int semid;
} ngx_mutex_t;
#define NGX_CV_SIGNAL 64
typedef struct {
int signo;
int kq;
ngx_tid_t tid;
ngx_log_t *log;
} ngx_cond_t;
#define ngx_thread_sigmask(how, set, oset) \
(sigprocmask(how, set, oset) == -1) ? ngx_errno : 0
#define ngx_thread_sigmask_n "sigprocmask()"
#define ngx_thread_join(t, p)
#define ngx_setthrtitle(n) setproctitle(n)
extern char *ngx_freebsd_kern_usrstack;
extern size_t ngx_thread_stack_size;
static ngx_inline ngx_int_t
ngx_gettid()
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{
char *sp;
if (ngx_thread_stack_size == 0) {
return 0;
}
#if ( __i386__ )
__asm__ volatile ("mov %%esp, %0" : "=q" (sp));
#elif ( __amd64__ )
__asm__ volatile ("mov %%rsp, %0" : "=q" (sp));
#else
#error "rfork()ed threads are not supported on this platform"
#endif
return (ngx_freebsd_kern_usrstack - sp) / ngx_thread_stack_size;
}
ngx_tid_t ngx_thread_self();
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typedef ngx_uint_t ngx_tls_key_t;
#define NGX_THREAD_KEYS_MAX 16
extern void **ngx_tls;
ngx_err_t ngx_thread_key_create(ngx_tls_key_t *key);
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#define ngx_thread_key_create_n "the tls key creation"
ngx_err_t ngx_thread_set_tls(ngx_tls_key_t key, void *value);
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#define ngx_thread_set_tls_n "the tls key setting"
static void *
ngx_thread_get_tls(ngx_tls_key_t key)
{
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if (key >= NGX_THREAD_KEYS_MAX) {
return NULL;
}
return ngx_tls[key * NGX_THREAD_KEYS_MAX + ngx_gettid()];
}
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#define ngx_mutex_trylock(m) ngx_mutex_dolock(m, 1)
#define ngx_mutex_lock(m) (void) ngx_mutex_dolock(m, 0)
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ngx_int_t ngx_mutex_dolock(ngx_mutex_t *m, ngx_int_t try);
void ngx_mutex_unlock(ngx_mutex_t *m);
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typedef int (*ngx_rfork_thread_func_pt)(void *arg);
#endif /* _NGX_FREEBSD_RFORK_THREAD_H_INCLUDED_ */