Mercurial > hg > nginx
view src/os/win32/ngx_files.c @ 182:3c49eaf3f522
nginx-0.0.1-2003-11-13-09:14:05 import
author | Igor Sysoev <igor@sysoev.ru> |
---|---|
date | Thu, 13 Nov 2003 06:14:05 +0000 |
parents | b75602822f64 |
children | 4c698194c56d |
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#include <ngx_config.h> #include <ngx_core.h> ssize_t ngx_read_file(ngx_file_t *file, char *buf, size_t size, off_t offset) { size_t n; long high_offset; ngx_err_t err; OVERLAPPED ovlp, *povlp; if (ngx_win32_version < NGX_WIN_NT) { high_offset = (long) (offset >> 32); if (SetFilePointer(file->fd, (long) offset, &high_offset, FILE_BEGIN) == 0xFFFFFFFF) { 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 = (DWORD) offset; ovlp.OffsetHigh = (DWORD) (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; } /* TODO: as read file */ ssize_t ngx_write_file(ngx_file_t *file, char *buf, size_t size, off_t offset) { size_t n; if (WriteFile(file->fd, buf, size, &n, NULL) == 0) { ngx_log_error(NGX_LOG_ERR, file->log, ngx_errno, "WriteFile() failed"); return NGX_ERROR; } file->offset += n; return n; } /* TODO: log error */ int ngx_file_append_mode(ngx_fd_t fd) { if (SetFilePointer(fd, 0, NULL, FILE_END) == 0xFFFFFFFF) { if (GetLastError() != NO_ERROR) { return NGX_ERROR; } } return NGX_OK; }