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Introduce sigtimedwait() and sigwaitinfo()

Browse source 
This change also invents sigcountset() and strsignal_r() and improves
the quality of siginfo_t handling.
This commit is contained in:
Justine Tunney 2022-10-10 07:36:07 -07:00
parent 7ae556463a
commit 467a332e38
No known key found for this signature in database
GPG key ID: BE714B4575D6E328
41 changed files with 887 additions and 345 deletions
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66
libc/intrin/describestatfs.c
View file

@ -24,8 +24,12 @@
#include "libc/intrin/kprintf.h"
#include "libc/sysv/consts/st.h"
const char *(DescribeStatfs)(char buf[300], int rc, const struct statfs *f) {
int i, n;
#define N 300
#define append(...) i += ksnprintf(buf + i, N - i, __VA_ARGS__)
const char *(DescribeStatfs)(char buf[N], int rc, const struct statfs *f) {
int i = 0;
char ibuf[21];
int64_t flags;
@ -33,90 +37,82 @@ const char *(DescribeStatfs)(char buf[300], int rc, const struct statfs *f) {
if (!f) return "NULL";
if ((!IsAsan() && kisdangerous(f)) ||
(IsAsan() && !__asan_is_valid(f, sizeof(*f)))) {
ksnprintf(buf, 300, "%p", f);
ksnprintf(buf, N, "%p", f);
return buf;
}
i = 0;
n = 300;
i += ksnprintf(buf + i, n - i, "{.f_type=%#lx /* %s */", f->f_type,
f->f_fstypename);
append("{.f_type=%#lx /* %s */", f->f_type, f->f_fstypename);
sizefmt(ibuf, f->f_bsize, 1024);
i += ksnprintf(buf + i, n - i, ", .f_%s=%sb", "bsize", ibuf);
append(", .f_%s=%sb", "bsize", ibuf);
sizefmt(ibuf, f->f_blocks * f->f_bsize, 1024);
i += ksnprintf(buf + i, n - i, ", .f_%s=%sb", "blocks", ibuf);
append(", .f_%s=%sb", "blocks", ibuf);
sizefmt(ibuf, f->f_bfree * f->f_bsize, 1024);
i += ksnprintf(buf + i, n - i, ", .f_%s=%sb", "bfree", ibuf);
append(", .f_%s=%sb", "bfree", ibuf);
sizefmt(ibuf, f->f_bavail * f->f_bsize, 1024);
i += ksnprintf(buf + i, n - i, ", .f_%s=%sb", "bavail", ibuf);
append(", .f_%s=%sb", "bavail", ibuf);
i += ksnprintf(buf + i, n - i, ", .f_%s=%'zu", "files", f->f_files);
i += ksnprintf(buf + i, n - i, ", .f_%s=%'zu", "ffree", f->f_ffree);
i += ksnprintf(buf + i, n - i, ", .f_fsid=%#lx", f->f_fsid);
i += ksnprintf(buf + i, n - i, ", .f_%s=%'zu", "namelen", f->f_namelen);
i += ksnprintf(buf + i, n - i, ", .f_%s=%d", "owner", f->f_owner);
append(", .f_%s=%'zu", "files", f->f_files);
append(", .f_%s=%'zu", "ffree", f->f_ffree);
append(", .f_fsid=%#lx", f->f_fsid);
append(", .f_%s=%'zu", "namelen", f->f_namelen);
append(", .f_%s=%d", "owner", f->f_owner);
flags = f->f_flags;
i += ksnprintf(buf + i, n - i, ", .f_flags=");
append(", .f_flags=");
if (ST_RDONLY && (flags & ST_RDONLY)) {
i += ksnprintf(buf + i, n - i, "ST_RDONLY|");
append("ST_RDONLY|");
flags &= ~ST_RDONLY;
}
if (ST_NOSUID && (flags & ST_NOSUID)) {
i += ksnprintf(buf + i, n - i, "ST_NOSUID|");
append("ST_NOSUID|");
flags &= ~ST_NOSUID;
}
if (ST_NODEV && (flags & ST_NODEV)) {
i += ksnprintf(buf + i, n - i, "ST_NODEV|");
append("ST_NODEV|");
flags &= ~ST_NODEV;
}
if (ST_NOEXEC && (flags & ST_NOEXEC)) {
i += ksnprintf(buf + i, n - i, "ST_NOEXEC|");
append("ST_NOEXEC|");
flags &= ~ST_NOEXEC;
}
if (ST_SYNCHRONOUS && (flags & ST_SYNCHRONOUS)) {
i += ksnprintf(buf + i, n - i, "ST_SYNCHRONOUS|");
append("ST_SYNCHRONOUS|");
flags &= ~ST_SYNCHRONOUS;
}
if (ST_MANDLOCK && (flags & ST_MANDLOCK)) {
i += ksnprintf(buf + i, n - i, "ST_MANDLOCK|");
append("ST_MANDLOCK|");
flags &= ~ST_MANDLOCK;
}
if (ST_WRITE && (flags & ST_WRITE)) {
i += ksnprintf(buf + i, n - i, "ST_WRITE|");
append("ST_WRITE|");
flags &= ~ST_WRITE;
}
if (ST_APPEND && (flags & ST_APPEND)) {
i += ksnprintf(buf + i, n - i, "ST_APPEND|");
append("ST_APPEND|");
flags &= ~ST_APPEND;
}
if (ST_IMMUTABLE && (flags & ST_IMMUTABLE)) {
i += ksnprintf(buf + i, n - i, "ST_IMMUTABLE|");
append("ST_IMMUTABLE|");
flags &= ~ST_IMMUTABLE;
}
if (ST_NOATIME && (flags & ST_NOATIME)) {
i += ksnprintf(buf + i, n - i, "ST_NOATIME|");
append("ST_NOATIME|");
flags &= ~ST_NOATIME;
}
if (ST_NODIRATIME && (flags & ST_NODIRATIME)) {
i += ksnprintf(buf + i, n - i, "ST_NODIRATIME|");
append("ST_NODIRATIME|");
flags &= ~ST_NODIRATIME;
}
if (ST_RELATIME && (flags & ST_RELATIME)) {
i += ksnprintf(buf + i, n - i, "ST_RELATIME|");
append("ST_RELATIME|");
flags &= ~ST_RELATIME;
}
i += ksnprintf(buf + i, n - i, "%#lx", flags);
if (n - i >= 2) {
buf[i + 0] = '}';
buf[i + 1] = 0;
}
append("%#lx}", flags);
return buf;
}