diff options
| author | Waldemar Brodkorb <wbx@openadk.org> | 2015-12-09 08:05:10 +0100 |
|---|---|---|
| committer | Waldemar Brodkorb <wbx@openadk.org> | 2015-12-17 20:35:19 +0100 |
| commit | 219b69d72e878094f3ce03a9e70719709a9b4c43 (patch) | |
| tree | c79c264c6e76d470e88ff57491ba3bf13c8aef46 /libc/stdio/_READ.c | |
| parent | 2e116b2eeea5f47ca26458b1962783baced2784c (diff) | |
libc/stdio: Rework custom streams interface similar to glibc.
Save 20 bytes per FILE structure, avoid indirect call for
read/write/seek/close operations for normal streams.
Additionally, custom streams has fileno = -2 now, like in glibc.
bloat-o-meter report (UCLIBC_HAS_GLIBC_CUSTOM_STREAMS=y):
function old new delta
fopencookie 69 131 +62
ftello64 233 260 +27
fseeko64 298 319 +21
fclose 423 442 +19
.rodata 16696 16708 +12
fileno_unlocked 53 45 -8
__ns_name_pack 859 851 -8
vswscanf 184 144 -40
vdprintf 231 187 -44
vsscanf 210 151 -59
vswprintf 269 201 -68
vsnprintf 249 181 -68
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 5/7 up/down: 141/-295) Total: -154 bytes
Signed-off-by: Leonid Lisovskiy <lly.dev@gmail.com>
Signed-off-by: Waldemar Brodkorb <wbx@uclibc-ng.org>
Diffstat (limited to 'libc/stdio/_READ.c')
| -rw-r--r-- | libc/stdio/_READ.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libc/stdio/_READ.c b/libc/stdio/_READ.c index 02601c090..a548dbb3f 100644 --- a/libc/stdio/_READ.c +++ b/libc/stdio/_READ.c @@ -27,7 +27,7 @@ size_t attribute_hidden __stdio_READ(register FILE *stream, ssize_t rv = 0; __STDIO_STREAM_VALIDATE(stream); - assert(stream->__filedes >= -1); + assert(stream->__filedes >= -2); assert(__STDIO_STREAM_IS_READING(stream)); assert(!__STDIO_STREAM_BUFFER_RAVAIL(stream)); /* Buffer must be empty. */ assert(!(stream->__modeflags & __FLAG_UNGOT)); |