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Add epoll and do more release readiness changes

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This change also pays off some of the remaining technical debt with
stdio, file descriptors, and memory managemnt polyfills.
This commit is contained in:
Justine Tunney 2020-11-28 12:01:51 -08:00
parent a9ea949df8
commit 3e4fd4b0ad
271 changed files with 5706 additions and 1365 deletions
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31
libc/stdio/fwritebuf.c
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@ -18,28 +18,21 @@
│ 02110-1301 USA │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/calls/calls.h"
#include "libc/calls/internal.h"
#include "libc/dce.h"
#include "libc/errno.h"
#include "libc/nt/files.h"
#include "libc/runtime/runtime.h"
#include "libc/stdio/internal.h"
#include "libc/stdio/stdio.h"
#include "libc/str/str.h"
/**
* One-shot writes data from stream buffer to underlying file or device.
*
* @param f is a non-null open stream handle
* @return number of bytes written or -1 on error
*/
int fwritebuf(FILE *f) {
ssize_t put;
unsigned bytes;
bytes = (f->beg < f->end ? f->end : f->size) - f->beg;
if ((put = write(f->fd, &f->buf[f->beg], bytes)) == -1) {
int __fwritebuf(FILE *f) {
ssize_t wrote;
if ((wrote = write(f->fd, f->buf, f->beg)) == -1) {
if (errno == EINTR) return 0;
return (int)fseterrno(f);
return __fseterrno(f);
}
f->beg = (unsigned)((f->beg + put) & (f->size - 1));
return bytes;
if (wrote == f->beg) {
f->beg = 0;
} else {
memcpy(f->buf, f->buf + wrote, f->beg - wrote);
f->beg -= wrote;
}
return wrote;
}