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Greatly expand system() shell code features

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The cosmopolitan command interpreter now has 13 builtin commands,
variable support, support for ; / && / || syntax, asynchronous support,
and plenty of unit tests with bug fixes.

This change fixes a bug in posix_spawn() with null envp arg. strace
logging now uses atomic writes for scatter functions. Breaking change
renaming GetCpuCount() to _getcpucount(). TurfWar is now updated to use
the new token bucket algorithm. WIN32 affinity masks now inherit across
fork() and execve().
This commit is contained in:
Justine Tunney 2022-10-11 21:06:27 -07:00
parent e7329b7cba
commit b41f91c658
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GPG key ID: BE714B4575D6E328
80 changed files with 1370 additions and 344 deletions
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9
libc/calls/preadv.c
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@ -129,12 +129,7 @@ static ssize_t Preadv(int fd, struct iovec *iov, int iovlen, int64_t off) {
ssize_t preadv(int fd, struct iovec *iov, int iovlen, int64_t off) {
ssize_t rc;
rc = Preadv(fd, iov, iovlen, off);
#if defined(SYSDEBUG) && _DATATRACE
if (UNLIKELY(__strace > 0)) {
kprintf(STRACE_PROLOGUE "preadv(%d, [", fd);
DescribeIov(iov, iovlen, rc != -1 ? rc : 0);
kprintf("], %d, %'ld) → %'ld% m\n", iovlen, off, rc);
}
#endif
STRACE("preadv(%d, [%s], %d, %'ld) → %'ld% m", fd,
DescribeIovec(rc, iov, iovlen), iovlen, off, rc);
return rc;
}