Mercurial > hg > nginx-quic
diff src/os/unix/freebsd/ngx_rfork_thread.c @ 3:34a521b1a148
nginx-0.0.1-2002-08-20-18:48:28 import
author | Igor Sysoev <igor@sysoev.ru> |
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date | Tue, 20 Aug 2002 14:48:28 +0000 |
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new file mode 100644 --- /dev/null +++ b/src/os/unix/freebsd/ngx_rfork_thread.c @@ -0,0 +1,64 @@ + +#include <ngx_os_thread.h> + +char *ngx_stacks_start; +char *ngx_stacks_end; +size_t ngx_stack_size; + + +/* handle thread-safe errno */ +static int errno0; /* errno for main thread */ +static int *errnos; + +int *__error() +{ + ngx_tid_t tid = ngx_gettid(); + return tid ? &(errnos[ngx_gettid()]) : &errno0; +} + + +int ngx_create_thread(ngx_os_tid_t *tid, void *stack, + int (*func)(void *arg), void *arg, ngx_log_t log) +{ + int id, err; + + id = rfork_thread(RFPROC|RFMEM, stack, func, arg); + err = ngx_errno; + + if (id == -1) + ngx_log_error(NGX_LOG_ERR, log, err, + "ngx_create_os_thread: rfork failed"); + else + *tid = id; + + return err; +} + + +int ngx_create_thread_env(int n, size_t size, ngx_log_t log) +{ + char *addr; + + /* create thread stacks */ + addr = mmap(NULL, n * size, PROT_READ|PROT_WRITE, MAP_ANON, -1, NULL); + if (addr == MAP_FAILED) { + ngx_log_error(NGX_LOG_ERR, log, ngx_errno, + "ngx_create_os_thread_stacks: mmap failed"); + return -1; + } + + nxg_stacks_start = addr; + nxg_stacks_end = addr + n * size; + nxg_stack_size = size; + + /* create thread errno array */ + ngx_test_null(errnos, ngx_calloc(n * sizeof(int)), -1); + + /* create thread tid array */ + ngx_test_null(ngx_os_tids, ngx_calloc(n * sizeof(ngx_os_tid_t)), -1); + + /* allow spinlock in malloc() */ + __isthreaded = 1; + + return 0; +}