Mercurial > hg > nginx
diff src/os/unix/ngx_files.c @ 3435:d65ba5392f59 stable-0.7
merge r3138, r3139, r3157, r3158, r3159, r3164, r3165,
r3202, r3203, r3383, r3388, r3417, r3418:
Win32 (mostly) and some Unix file related fixes:
*) preserve errno while ngx_free()
*) win32 ngx_file_info() utf8 support
*) delete Win95 code
*) log file name for read/write errors
*) test incomplete WriteFile()
*) handle short pwrite() to log an error cause: ENOSPC, EDQUOT, or EFBIG
*) uniform ngx_directio_on/off() interface with other file functions
*) do not create Win32 drive letter in ngx_create_full_path()
*) ignore EACCES errors for top level directories in ngx_create_full_path()
*) fix Win32 error messages when an temporary file replaces an existent file:
*) do not rename an already renamed file
*) now ngx_win32_rename_file() returns error code
*) do not log failure inside ngx_win32_rename_file()
*) fix Win32 error message when an temporary file replaces an existent file:
return at once if ngx_win32_rename_file() was not failed
and do not try to delete already the renamed temporary file
*) skip URI trailing spaces under Win32
*) disable Win32 short file names
| author | Igor Sysoev <igor@sysoev.ru> |
|---|---|
| date | Mon, 01 Feb 2010 15:06:25 +0000 |
| parents | 6b8284fc958d |
| children |
line wrap: on
line diff
--- a/src/os/unix/ngx_files.c +++ b/src/os/unix/ngx_files.c @@ -22,7 +22,7 @@ ngx_read_file(ngx_file_t *file, u_char * if (n == -1) { ngx_log_error(NGX_LOG_CRIT, file->log, ngx_errno, - "pread() failed, file \"%s\"", file->name.data); + "pread() \"%s\" failed", file->name.data); return NGX_ERROR; } @@ -30,7 +30,8 @@ ngx_read_file(ngx_file_t *file, u_char * if (file->sys_offset != offset) { if (lseek(file->fd, offset, SEEK_SET) == -1) { - ngx_log_error(NGX_LOG_CRIT, file->log, ngx_errno, "lseek() failed"); + ngx_log_error(NGX_LOG_CRIT, file->log, ngx_errno, + "lseek() \"%s\" failed", file->name.data); return NGX_ERROR; } @@ -40,7 +41,8 @@ ngx_read_file(ngx_file_t *file, u_char * n = read(file->fd, buf, size); if (n == -1) { - ngx_log_error(NGX_LOG_CRIT, file->log, ngx_errno, "read() failed"); + ngx_log_error(NGX_LOG_CRIT, file->log, ngx_errno, + "read() \"%s\" failed", file->name.data); return NGX_ERROR; } @@ -57,57 +59,66 @@ ngx_read_file(ngx_file_t *file, u_char * ssize_t ngx_write_file(ngx_file_t *file, u_char *buf, size_t size, off_t offset) { - ssize_t n; + ssize_t n, written; ngx_log_debug4(NGX_LOG_DEBUG_CORE, file->log, 0, "write: %d, %p, %uz, %O", file->fd, buf, size, offset); + written = 0; + #if (NGX_HAVE_PWRITE) - n = pwrite(file->fd, buf, size, offset); + for ( ;; ) { + n = pwrite(file->fd, buf, size, offset); + + if (n == -1) { + ngx_log_error(NGX_LOG_CRIT, file->log, ngx_errno, + "pwrite() \"%s\" failed", file->name.data); + return NGX_ERROR; + } - if (n == -1) { - ngx_log_error(NGX_LOG_CRIT, file->log, ngx_errno, "pwrite() failed"); - return NGX_ERROR; - } + file->offset += n; + written += n; - if ((size_t) n != size) { - ngx_log_error(NGX_LOG_CRIT, file->log, 0, - "pwrite() has written only %z of %uz", n, size); - return NGX_ERROR; + if ((size_t) n == size) { + return written; + } + + offset += n; + size -= n; } #else if (file->sys_offset != offset) { if (lseek(file->fd, offset, SEEK_SET) == -1) { - ngx_log_error(NGX_LOG_CRIT, file->log, ngx_errno, "lseek() failed"); + ngx_log_error(NGX_LOG_CRIT, file->log, ngx_errno, + "lseek() \"%s\" failed", file->name.data); return NGX_ERROR; } file->sys_offset = offset; } - n = write(file->fd, buf, size); + for ( ;; ) { + n = write(file->fd, buf, size); - if (n == -1) { - ngx_log_error(NGX_LOG_CRIT, file->log, ngx_errno, "write() failed"); - return NGX_ERROR; - } + if (n == -1) { + ngx_log_error(NGX_LOG_CRIT, file->log, ngx_errno, + "write() \"%s\" failed", file->name.data); + return NGX_ERROR; + } - if ((size_t) n != size) { - ngx_log_error(NGX_LOG_CRIT, file->log, 0, - "write() has written only %z of %uz", n, size); - return NGX_ERROR; - } + file->offset += n; + written += n; - file->sys_offset += n; - -#endif + if ((size_t) n == size) { + return written; + } - file->offset += n; - - return n; + size -= n; + } +#endif } @@ -191,7 +202,7 @@ ngx_write_chain_to_file(ngx_file_t *file if (file->sys_offset != offset) { if (lseek(file->fd, offset, SEEK_SET) == -1) { ngx_log_error(NGX_LOG_CRIT, file->log, ngx_errno, - "lseek() failed"); + "lseek() \"%s\" failed", file->name.data); return NGX_ERROR; } @@ -202,13 +213,14 @@ ngx_write_chain_to_file(ngx_file_t *file if (n == -1) { ngx_log_error(NGX_LOG_CRIT, file->log, ngx_errno, - "writev() failed"); + "writev() \"%s\" failed", file->name.data); return NGX_ERROR; } if ((size_t) n != size) { ngx_log_error(NGX_LOG_CRIT, file->log, 0, - "writev() has written only %z of %uz", n, size); + "writev() \"%s\" has written only %z of %uz", + file->name.data, n, size); return NGX_ERROR; } @@ -393,7 +405,7 @@ ngx_directio_on(ngx_fd_t fd) flags = fcntl(fd, F_GETFL); if (flags == -1) { - return -1; + return NGX_FILE_ERROR; } return fcntl(fd, F_SETFL, flags | O_DIRECT); @@ -408,7 +420,7 @@ ngx_directio_off(ngx_fd_t fd) flags = fcntl(fd, F_GETFL); if (flags == -1) { - return -1; + return NGX_FILE_ERROR; } return fcntl(fd, F_SETFL, flags & ~O_DIRECT);