diff options
| -rw-r--r-- | shell/ash.c | 66 |
1 files changed, 33 insertions, 33 deletions
diff --git a/shell/ash.c b/shell/ash.c index ccb1e1a..6173a25 100644 --- a/shell/ash.c +++ b/shell/ash.c @@ -3141,20 +3141,18 @@ struct job { }; static pid_t backgndpid; /* pid of last background process */ -static int job_warning; /* user was warned about stopped jobs */ -#if JOBS -static int jobctl; /* true if doing job control */ -#endif +static smallint job_warning; /* user was warned about stopped jobs (can be 2, 1 or 0). */ static struct job *makejob(union node *, int); static int forkshell(struct job *, union node *, int); static int waitforjob(struct job *); -#if ! JOBS -#define setjobctl(on) /* do nothing */ +#if !JOBS +enum { jobctl = 0 }; +#define setjobctl(on) do {} while (0) #else +static smallint jobctl; /* true if doing job control */ static void setjobctl(int); -static void showjobs(FILE *, int); #endif /* @@ -3836,11 +3834,32 @@ showjob(FILE *out, struct job *jp, int mode) } } +/* + * Print a list of jobs. If "change" is nonzero, only print jobs whose + * statuses have changed since the last call to showjobs. + */ +static void +showjobs(FILE *out, int mode) +{ + struct job *jp; + + TRACE(("showjobs(%x) called\n", mode)); + + /* If not even one one job changed, there is nothing to do */ + while (dowait(DOWAIT_NORMAL, NULL) > 0) + continue; + + for (jp = curjob; jp; jp = jp->prev_job) { + if (!(mode & SHOW_CHANGED) || jp->changed) { + showjob(out, jp, mode); + } + } +} + static int jobscmd(int argc, char **argv) { int mode, m; - FILE *out; mode = 0; while ((m = nextopt("lp"))) { @@ -3850,38 +3869,16 @@ jobscmd(int argc, char **argv) mode = SHOW_PGID; } - out = stdout; argv = argptr; if (*argv) { do - showjob(out, getjob(*argv,0), mode); + showjob(stdout, getjob(*argv,0), mode); while (*++argv); } else - showjobs(out, mode); + showjobs(stdout, mode); return 0; } - -/* - * Print a list of jobs. If "change" is nonzero, only print jobs whose - * statuses have changed since the last call to showjobs. - */ -static void -showjobs(FILE *out, int mode) -{ - struct job *jp; - - TRACE(("showjobs(%x) called\n", mode)); - - /* If not even one one job changed, there is nothing to do */ - while (dowait(DOWAIT_NORMAL, NULL) > 0) - continue; - - for (jp = curjob; jp; jp = jp->prev_job) { - if (!(mode & SHOW_CHANGED) || jp->changed) - showjob(out, jp, mode); - } -} #endif /* JOBS */ static int @@ -4043,6 +4040,8 @@ makejob(union node *node, int nprocs) } memset(jp, 0, sizeof(*jp)); #if JOBS + /* jp->jobctl is a bitfield. + * "jp->jobctl |= jobctl" likely to give awful code */ if (jobctl) jp->jobctl = 1; #endif @@ -10883,7 +10882,8 @@ cmdloop(int top) } numeof++; } else if (nflag == 0) { - job_warning = (job_warning == 2) ? 1 : 0; + /* job_warning can only be 2,1,0. Here 2->1, 1/0->0 */ + job_warning >>= 1; numeof = 0; evaltree(n, 0); } |