JehanneOS/mksh
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add split-screen debugging; close-on-exec the logfile

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This commit is contained in:
tg
2012-10-21 17:16:45 +00:00
parent b3c7268f02
commit 77f5b8f38d
2 changed files with 37 additions and 9 deletions
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23
main.c
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@@ -34,7 +34,7 @@
#include <locale.h>
#endif
__RCSID("$MirOS: src/bin/mksh/main.c,v 1.228 2012/09/21 17:20:21 tg Exp $");
__RCSID("$MirOS: src/bin/mksh/main.c,v 1.229 2012/10/21 17:16:45 tg Exp $");
extern char **environ;
@@ -1291,14 +1291,20 @@ struct shf shf_iob[NSHF_IOB];
void
initio(void)
{
#ifdef DF
const char *lfp;
#endif
/* force buffer allocation */
shf_fdopen(1, SHF_WR, shl_stdout);
shf_fdopen(2, SHF_WR, shl_out);
shf_fdopen(2, SHF_WR, shl_spare);
#ifdef DF
if ((shl_dbg_fd = open("/tmp/mksh-dbg.txt",
O_WRONLY | O_APPEND | O_CREAT, 0600)) == -1)
errorf("cannot open debug output file");
if ((lfp = getenv("SDMKSH_PATH")) == NULL)
lfp = "/tmp/mksh-dbg.txt";
if ((shl_dbg_fd = open(lfp, O_WRONLY | O_APPEND | O_CREAT, 0600)) == -1)
errorf("cannot open debug output file %s", lfp);
if (shl_dbg_fd < FDBASE) {
int nfd;
@@ -1307,6 +1313,7 @@ initio(void)
if ((shl_dbg_fd = nfd) == -1)
errorf("cannot dup debug output file");
}
fcntl(shl_dbg_fd, F_SETFD, FD_CLOEXEC);
shf_fdopen(shl_dbg_fd, SHF_WR, shl_dbg);
DF("=== open ===");
#endif
@@ -1773,11 +1780,15 @@ DF(const char *fmt, ...)
{
va_list args;
struct timeval tv;
mirtime_mjd mjd;
mksh_lockfd(shl_dbg_fd);
mksh_TIME(tv);
shf_fprintf(shl_dbg, "[%d.%06d:%d] ", (int)tv.tv_sec, (int)tv.tv_usec,
(int)getpid());
timet2mjd(&mjd, tv.tv_sec);
shf_fprintf(shl_dbg, "[%02u:%02u:%02u (%u) %u.%06u] ",
(unsigned)mjd.sec / 3600, ((unsigned)mjd.sec / 60) % 60,
(unsigned)mjd.sec % 60, (unsigned)getpid(),
(unsigned)tv.tv_sec, (unsigned)tv.tv_usec);
va_start(args, fmt);
shf_vfprintf(shl_dbg, fmt, args);
va_end(args);