Mercurial > hg > nginx-quic
view src/os/win32/ngx_files.c @ 2624:418c9f97bd01
fix FreeBSD before 7 building, broken in r2616
author | Igor Sysoev <igor@sysoev.ru> |
---|---|
date | Mon, 30 Mar 2009 12:33:33 +0000 |
parents | ceef364208c8 |
children | 64a10d6b97bd |
line wrap: on
line source
/* * Copyright (C) Igor Sysoev */ #include <ngx_config.h> #include <ngx_core.h> ssize_t ngx_read_file(ngx_file_t *file, u_char *buf, size_t size, off_t offset) { long high_offset; u_long n; ngx_err_t err; OVERLAPPED ovlp, *povlp; if (ngx_win32_version < NGX_WIN_NT) { /* * under Win9X the overlapped pointer must be NULL * so we have to use SetFilePointer() to set the offset */ if (file->offset != offset) { /* * the maximum file size on the FAT16 is 2G, but on the FAT32 * the size is 4G so we have to use the high_offset * because a single offset is signed value */ high_offset = (long) (offset >> 32); if (SetFilePointer(file->fd, (long) offset, &high_offset, FILE_BEGIN) == INVALID_SET_FILE_POINTER) { /* * INVALID_SET_FILE_POINTER is 0xffffffff and it can be valid * value for large file so we need also to check GetLastError() */ err = ngx_errno; if (err != NO_ERROR) { ngx_log_error(NGX_LOG_ERR, file->log, err, "SeekFilePointer() failed"); return NGX_ERROR; } } } povlp = NULL; } else { ovlp.Internal = 0; ovlp.InternalHigh = 0; ovlp.Offset = (u_long) offset; ovlp.OffsetHigh = (u_long) (offset >> 32); ovlp.hEvent = NULL; povlp = &ovlp; } if (ReadFile(file->fd, buf, size, &n, povlp) == 0) { ngx_log_error(NGX_LOG_ERR, file->log, ngx_errno, "ReadFile() failed"); return NGX_ERROR; } file->offset += n; return n; } ssize_t ngx_write_file(ngx_file_t *file, u_char *buf, size_t size, off_t offset) { long high_offset; u_long n; ngx_err_t err; OVERLAPPED ovlp, *povlp; if (ngx_win32_version < NGX_WIN_NT) { /* * under Win9X the overlapped pointer must be NULL * so we have to use SetFilePointer() to set the offset */ if (file->offset != offset) { /* * the maximum file size on the FAT16 is 2G, but on the FAT32 * the size is 4G so we have to use high_offset * because a single offset is signed value */ high_offset = (long) (offset >> 32); if (SetFilePointer(file->fd, (long) offset, &high_offset, FILE_BEGIN) == INVALID_SET_FILE_POINTER) { /* * INVALID_SET_FILE_POINTER is 0xffffffff and it can be valid * value for large file so we need also to check GetLastError() */ err = ngx_errno; if (err != NO_ERROR) { ngx_log_error(NGX_LOG_ERR, file->log, err, "SeekFilePointer() failed"); return NGX_ERROR; } } } povlp = NULL; } else { ovlp.Internal = 0; ovlp.InternalHigh = 0; ovlp.Offset = (u_long) offset; ovlp.OffsetHigh = (u_long) (offset >> 32); ovlp.hEvent = NULL; povlp = &ovlp; } if (WriteFile(file->fd, buf, size, &n, povlp) == 0) { ngx_log_error(NGX_LOG_ERR, file->log, ngx_errno, "WriteFile() failed"); return NGX_ERROR; } file->offset += n; return n; } ssize_t ngx_write_chain_to_file(ngx_file_t *file, ngx_chain_t *cl, off_t offset, ngx_pool_t *pool) { u_char *buf, *prev; size_t size; ssize_t total, n; total = 0; while (cl) { buf = cl->buf->pos; prev = buf; size = 0; /* coalesce the neighbouring bufs */ while (cl && prev == cl->buf->pos) { size += cl->buf->last - cl->buf->pos; prev = cl->buf->last; cl = cl->next; } n = ngx_write_file(file, buf, size, offset); if (n == NGX_ERROR) { return NGX_ERROR; } total += n; offset += n; } return total; } ssize_t ngx_read_fd(ngx_fd_t fd, void *buf, size_t size) { u_long n; if (ReadFile(fd, buf, size, &n, NULL) != 0) { return (size_t) n; } return -1; } ssize_t ngx_write_fd(ngx_fd_t fd, void *buf, size_t size) { u_long n; if (WriteFile(fd, buf, size, &n, NULL) != 0) { return (size_t) n; } return -1; } ngx_int_t ngx_win32_rename_file(ngx_str_t *from, ngx_str_t *to, ngx_log_t *log) { u_char *name; ngx_int_t rc; ngx_uint_t collision; ngx_atomic_uint_t num; name = ngx_alloc(to->len + 1 + 10 + 1 + sizeof("DELETE"), log); if (name == NULL) { return NGX_ERROR; } ngx_memcpy(name, to->data, to->len); collision = 0; /* mutex_lock() (per cache or single ?) */ for ( ;; ) { num = ngx_next_temp_number(collision); ngx_sprintf(name + to->len, ".%0muA.DELETE", num); if (MoveFile((const char *) to->data, (const char *) name) != 0) { break; } collision = 1; ngx_log_error(NGX_LOG_CRIT, log, ngx_errno, "MoveFile() failed"); } if (MoveFile((const char *) from->data, (const char *) to->data) == 0) { rc = NGX_ERROR; } else { rc = NGX_OK; } if (DeleteFile((const char *) name) == 0) { ngx_log_error(NGX_LOG_CRIT, log, ngx_errno, "DeleteFile() failed"); } if (rc == NGX_ERROR) { ngx_log_error(NGX_LOG_CRIT, log, ngx_errno, "MoveFile() failed"); } /* mutex_unlock() */ ngx_free(name); return rc; } ngx_int_t ngx_file_info(u_char *file, ngx_file_info_t *sb) { WIN32_FILE_ATTRIBUTE_DATA fa; /* NT4 and Win98 */ if (GetFileAttributesEx((char *) file, GetFileExInfoStandard, &fa) == 0) { return NGX_ERROR; } sb->dwFileAttributes = fa.dwFileAttributes; sb->ftCreationTime = fa.ftCreationTime; sb->ftLastAccessTime = fa.ftLastAccessTime; sb->ftLastWriteTime = fa.ftLastWriteTime; sb->nFileSizeHigh = fa.nFileSizeHigh; sb->nFileSizeLow = fa.nFileSizeLow; return NGX_OK; } ngx_int_t ngx_set_file_time(u_char *name, ngx_fd_t fd, time_t s) { uint64_t intervals; FILETIME ft; /* 116444736000000000 is commented in src/os/win32/ngx_time.c */ intervals = s * 10000000 + 116444736000000000; ft.dwLowDateTime = (DWORD) intervals; ft.dwHighDateTime = (DWORD) (intervals >> 32); if (SetFileTime(fd, NULL, NULL, &ft) != 0) { return NGX_OK; } return NGX_ERROR; } char * ngx_realpath(u_char *path, u_char *resolved) { /* STUB */ return (char *) path; } ngx_int_t ngx_open_dir(ngx_str_t *name, ngx_dir_t *dir) { ngx_cpystrn(name->data + name->len, NGX_DIR_MASK, NGX_DIR_MASK_LEN + 1); dir->dir = FindFirstFile((const char *) name->data, &dir->finddata); if (dir->dir == INVALID_HANDLE_VALUE) { return NGX_ERROR; } dir->valid_info = 1; dir->valid_type = 1; dir->ready = 1; return NGX_OK; } ngx_int_t ngx_read_dir(ngx_dir_t *dir) { if (dir->ready) { dir->ready = 0; return NGX_OK; } if (FindNextFile(dir->dir, &dir->finddata) != 0) { return NGX_OK; } return NGX_ERROR; } ngx_int_t ngx_open_glob(ngx_glob_t *gl) { u_char *p; size_t len; ngx_err_t err; gl->dir = FindFirstFile((const char *) gl->pattern, &gl->finddata); if (gl->dir == INVALID_HANDLE_VALUE) { err = ngx_errno; if ((err == ERROR_FILE_NOT_FOUND || err == ERROR_PATH_NOT_FOUND) && gl->test) { gl->no_match = 1; return NGX_OK; } return NGX_ERROR; } for (p = gl->pattern; *p; p++) { if (*p == '/') { gl->last = p + 1 - gl->pattern; } } len = ngx_strlen(gl->finddata.cFileName); gl->name.len = gl->last + len; gl->name.data = ngx_alloc(gl->name.len + 1, gl->log); if (gl->name.data == NULL) { return NGX_ERROR; } ngx_memcpy(gl->name.data, gl->pattern, gl->last); ngx_cpystrn(gl->name.data + gl->last, (u_char *) gl->finddata.cFileName, len + 1); gl->ready = 1; return NGX_OK; } ngx_int_t ngx_read_glob(ngx_glob_t *gl, ngx_str_t *name) { size_t len; ngx_err_t err; if (gl->no_match) { return NGX_DONE; } if (gl->ready) { *name = gl->name; gl->ready = 0; return NGX_OK; } ngx_free(gl->name.data); gl->name.data = NULL; if (FindNextFile(gl->dir, &gl->finddata) != 0) { len = ngx_strlen(gl->finddata.cFileName); gl->name.len = gl->last + len; gl->name.data = ngx_alloc(gl->name.len + 1, gl->log); if (gl->name.data == NULL) { return NGX_ERROR; } ngx_memcpy(gl->name.data, gl->pattern, gl->last); ngx_cpystrn(gl->name.data + gl->last, (u_char *) gl->finddata.cFileName, len + 1); *name = gl->name; return NGX_OK; } err = ngx_errno; if (err == NGX_ENOMOREFILES) { return NGX_DONE; } ngx_log_error(NGX_LOG_ALERT, gl->log, err, "FindNextFile(%s) failed", gl->pattern); return NGX_ERROR; } void ngx_close_glob(ngx_glob_t *gl) { if (gl->name.data) { ngx_free(gl->name.data); } if (gl->dir == INVALID_HANDLE_VALUE) { return; } if (FindClose(gl->dir) == 0) { ngx_log_error(NGX_LOG_ALERT, gl->log, ngx_errno, "FindClose(%s) failed", gl->pattern); } } ngx_int_t ngx_de_info(u_char *name, ngx_dir_t *dir) { return NGX_OK; } ngx_int_t ngx_de_link_info(u_char *name, ngx_dir_t *dir) { return NGX_OK; } ngx_int_t ngx_file_append_mode(ngx_fd_t fd) { #if 0 if (LockFile(fd, 0, 0, 0xffffffff, 0xffffffff) == 0) { return NGX_ERROR; } #endif if (SetFilePointer(fd, 0, NULL, FILE_END) == INVALID_SET_FILE_POINTER) { if (ngx_errno != NO_ERROR) { return NGX_ERROR; } } #if 0 if (UnlockFile(fd, 0, 0, 0xffffffff, 0xffffffff) == 0) { return NGX_ERROR; } #endif return NGX_OK; } ngx_int_t ngx_directio_on(ngx_fd_t fd) { return 0; } ngx_int_t ngx_directio_off(ngx_fd_t fd) { return 0; } size_t ngx_fs_bsize(u_char *name) { u_char root[4]; u_long sc, bs, nfree, ncl; if (name[2] == ':') { ngx_cpystrn(root, name, 4); name = root; } if (GetDiskFreeSpace((const char *) name, &sc, &bs, &nfree, &ncl) == 0) { return 512; } return sc * bs; }