Mercurial > hg > nginx-quic
view src/os/win32/ngx_shmem.c @ 4689:d2ed9fee092b
Fixed handling of conflicting wildcard server names.
With previous code wildcard names were added to hash even if conflict
was detected. This resulted in identical names in hash and segfault
later in ngx_hash_wildcard_init().
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Mon, 18 Jun 2012 14:06:00 +0000 |
parents | b3d4e9c66e24 |
children | af7eba90645d |
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/* * Copyright (C) Igor Sysoev * Copyright (C) Nginx, Inc. */ #include <ngx_config.h> #include <ngx_core.h> ngx_int_t ngx_shm_alloc(ngx_shm_t *shm) { u_char *name; uint64_t size; name = ngx_alloc(shm->name.len + 2 + NGX_INT32_LEN, shm->log); if (name == NULL) { return NGX_ERROR; } (void) ngx_sprintf(name, "%V_%s%Z", &shm->name, ngx_unique); ngx_set_errno(0); size = shm->size; shm->handle = CreateFileMapping(INVALID_HANDLE_VALUE, NULL, PAGE_READWRITE, (u_long) (size >> 32), (u_long) (size & 0xffffffff), (char *) name); if (shm->handle == NULL) { ngx_log_error(NGX_LOG_ALERT, shm->log, ngx_errno, "CreateFileMapping(%uz, %s) failed", shm->size, name); ngx_free(name); return NGX_ERROR; } ngx_free(name); if (ngx_errno == ERROR_ALREADY_EXISTS) { shm->exists = 1; } shm->addr = MapViewOfFile(shm->handle, FILE_MAP_WRITE, 0, 0, 0); if (shm->addr != NULL) { return NGX_OK; } ngx_log_error(NGX_LOG_ALERT, shm->log, ngx_errno, "MapViewOfFile(%uz) of file mapping \"%V\" failed", shm->size, &shm->name); if (CloseHandle(shm->handle) == 0) { ngx_log_error(NGX_LOG_ALERT, shm->log, ngx_errno, "CloseHandle() of file mapping \"%V\" failed", &shm->name); } return NGX_ERROR; } void ngx_shm_free(ngx_shm_t *shm) { if (UnmapViewOfFile(shm->addr) == 0) { ngx_log_error(NGX_LOG_ALERT, shm->log, ngx_errno, "UnmapViewOfFile(%p) of file mapping \"%V\" failed", shm->addr, &shm->name); } if (CloseHandle(shm->handle) == 0) { ngx_log_error(NGX_LOG_ALERT, shm->log, ngx_errno, "CloseHandle() of file mapping \"%V\" failed", &shm->name); } }