Imported from ../bash-2.0.tar.gz.
This commit is contained in:
Jari Aalto
parent
726f63884d
commit
ccc6cda312
502 changed files with 91988 additions and 69123 deletions
188
jobs.h
188
jobs.h
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@ -18,8 +18,8 @@
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with Bash; see the file COPYING. If not, write to the Free Software
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Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
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#if !defined (__JOBS_H__)
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# define __JOBS_H__
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#if !defined (_JOBS_H_)
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# define _JOBS_H_
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#include "quit.h"
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#include "siglist.h"
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@ -27,93 +27,26 @@
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#include "stdc.h"
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/* Defines controlling the fashion in which jobs are listed. */
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#define JLIST_STANDARD 0
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#define JLIST_LONG 1
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#define JLIST_PID_ONLY 2
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#define JLIST_CHANGED_ONLY 3
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#define JLIST_STANDARD 0
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#define JLIST_LONG 1
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#define JLIST_PID_ONLY 2
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#define JLIST_CHANGED_ONLY 3
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#define JLIST_NONINTERACTIVE 4
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#if defined (HAVE_WAIT_H)
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/* If _POSIX_VERSION is not defined, we assume that <sys/wait.h> defines
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a `union wait' and various macros used to manipulate it. Look in
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bashwait.h for the things we expect to find. */
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#if defined (HAVE_SYS_WAIT_H)
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# include <sys/wait.h>
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#else /* !HAVE_WAIT_H */
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# include "bash_endian.h"
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#else /* !HAVE_SYS_WAIT_H */
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# if !defined (_POSIX_VERSION)
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# if defined (LITTLE_ENDIAN)
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union wait
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{
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int w_status; /* used in syscall */
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/* Terminated process status. */
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struct
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{
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unsigned short
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w_Termsig : 7, /* termination signal */
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w_Coredump : 1, /* core dump indicator */
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w_Retcode : 8, /* exit code if w_termsig==0 */
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w_Fill1 : 16; /* high 16 bits unused */
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} w_T;
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/* Stopped process status. Returned
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only for traced children unless requested
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with the WUNTRACED option bit. */
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struct
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{
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unsigned short
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w_Stopval : 8, /* == W_STOPPED if stopped */
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w_Stopsig : 8, /* actually zero on XENIX */
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w_Fill2 : 16; /* high 16 bits unused */
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} w_S;
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};
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# else /* !LITTLE_ENDIAN */
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/* This is for big-endian machines like the IBM RT, HP 9000, or Sun-3 */
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union wait
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{
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int w_status; /* used in syscall */
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/* Terminated process status. */
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struct
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{
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unsigned short w_Fill1 : 16; /* high 16 bits unused */
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unsigned w_Retcode : 8; /* exit code if w_termsig==0 */
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unsigned w_Coredump : 1; /* core dump indicator */
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unsigned w_Termsig : 7; /* termination signal */
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} w_T;
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/* Stopped process status. Returned
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only for traced children unless requested
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with the WUNTRACED option bit. */
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struct
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{
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unsigned short w_Fill2 : 16; /* high 16 bits unused */
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unsigned w_Stopsig : 8; /* signal that stopped us */
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unsigned w_Stopval : 8; /* == W_STOPPED if stopped */
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} w_S;
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};
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# endif /* !LITTLE_ENDIAN */
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# define w_termsig w_T.w_Termsig
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# define w_coredump w_T.w_Coredump
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# define w_retcode w_T.w_Retcode
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# define w_stopval w_S.w_Stopval
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# define w_stopsig w_S.w_Stopsig
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/* Note that sys/wait.h defines these for Posix systems. */
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# define WSTOPPED 0177
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# define WIFSTOPPED(x) (((x) . w_stopval) == WSTOPPED)
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# define WIFEXITED(x) ((! (WIFSTOPPED (x))) && (((x) . w_termsig) == 0))
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# define WIFSIGNALED(x) ((! (WIFSTOPPED (x))) && (((x) . w_termsig) != 0))
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# endif /* !_POSIX_VERSION */
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#endif /* !HAVE_WAIT_H */
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# include "bashwait.h"
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# endif
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#endif /* !HAVE_SYS_WAIT_H */
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/* How to get the status of a job. For Posix, this is just an
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int, but for other systems we have to crack the union wait. */
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#if !defined (_POSIX_VERSION)
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# define pid_t int
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typedef union wait WAIT;
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# define WSTATUS(t) (t.w_status)
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#else /* _POSIX_VERSION */
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@ -200,10 +133,19 @@ typedef struct process {
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typedef enum { JRUNNING, JSTOPPED, JDEAD, JMIXED } JOB_STATE;
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#define JOBSTATE(job) (jobs[(job)]->state)
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#define STOPPED(j) (jobs[(j)]->state == JSTOPPED)
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#define RUNNING(j) (jobs[(j)]->state == JRUNNING)
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#define DEADJOB(j) (jobs[(j)]->state == JDEAD)
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/* Values for the FLAGS field in the JOB struct below. */
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#define J_FOREGROUND 0x01 /* Non-zero if this is running in the foreground. */
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#define J_NOTIFIED 0x02 /* Non-zero if already notified about job state. */
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#define J_JOBCONTROL 0x04 /* Non-zero if this job started under job control. */
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#define J_NOHUP 0x08 /* Don't send SIGHUP to job if shell gets SIGHUP. */
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#define IS_FOREGROUND(j) ((jobs[j]->flags & J_FOREGROUND) != 0)
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#define IS_NOTIFIED(j) ((jobs[j]->flags & J_NOTIFIED) != 0)
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#define IS_JOBCONTROL(j) ((jobs[j]->flags & J_JOBCONTROL) != 0)
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typedef struct job {
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char *wd; /* The working directory at time of invocation. */
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@ -213,6 +155,8 @@ typedef struct job {
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int flags; /* Flags word: J_NOTIFIED, J_FOREGROUND, or J_JOBCONTROL. */
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#if defined (JOB_CONTROL)
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COMMAND *deferred; /* Commands that will execute when this job is done. */
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VFunction *j_cleanup; /* Cleanup function to call when job marked JDEAD */
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PTR_T cleanarg; /* Argument passed to (*j_cleanup)() */
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#endif /* JOB_CONTROL */
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} JOB;
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@ -222,69 +166,10 @@ typedef struct job {
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/* A value which cannot be a process ID. */
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#define NO_PID (pid_t)-1
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#if !defined (_POSIX_VERSION) && !defined (sigmask)
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# define sigmask(x) (1 << ((x)-1))
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#endif /* !POSIX && !sigmask */
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#if !defined (SIGABRT)
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# define SIGABRT SIGIOT
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#endif /* !SIGABRT */
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#if !defined (SIGCHLD)
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# define SIGCHLD SIGCLD
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#endif /* !SIGCHLD */
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#if !defined (_POSIX_VERSION)
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# if !defined (SIG_BLOCK)
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# define SIG_BLOCK 2
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# define SIG_SETMASK 3
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# endif /* SIG_BLOCK */
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/* Type of a signal set. */
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# define sigset_t int
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/* Make sure there is nothing inside the signal set. */
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# define sigemptyset(set) (*(set) = 0)
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/* Initialize the signal set to hold all signals. */
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# define sigfillset(set) (*set) = sigmask (NSIG) - 1
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/* Add SIG to the contents of SET. */
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# define sigaddset(set, sig) *(set) |= sigmask (sig)
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/* Delete SIG from signal set SET. */
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# define sigdelset(set, sig) *(set) &= ~sigmask (sig)
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/* Is SIG a member of the signal set SET? */
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# define sigismember(set, sig) ((*(set) & sigmask (sig)) != 0)
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/* Suspend the process until the reception of one of the signals
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not present in SET. */
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# define sigsuspend(set) sigpause (*(set))
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#endif /* !_POSIX_VERSION */
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/* These definitions are used both in POSIX and non-POSIX implementations. */
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#define BLOCK_SIGNAL(sig, nvar, ovar) \
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sigemptyset (&nvar); \
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sigaddset (&nvar, sig); \
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sigemptyset (&ovar); \
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sigprocmask (SIG_BLOCK, &nvar, &ovar)
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#if defined (_POSIX_VERSION)
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# define BLOCK_CHILD(nvar, ovar) \
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BLOCK_SIGNAL (SIGCHLD, nvar, ovar)
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# define UNBLOCK_CHILD(ovar) \
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sigprocmask (SIG_SETMASK, &ovar, (sigset_t *) NULL)
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#else /* !_POSIX_VERSION */
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# define BLOCK_CHILD(nvar, ovar) ovar = sigblock (sigmask (SIGCHLD))
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# define UNBLOCK_CHILD(ovar) sigsetmask (ovar)
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#endif /* !_POSIX_VERSION */
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/* System calls. */
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#if !defined (SunOS5) && !defined (USGr4_2) && !defined (__BSD_4_4__)
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#if !defined (HAVE_UNISTD_H)
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extern pid_t fork (), getpid (), getpgrp ();
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#endif /* !SunOS5 && !USGr4_2 && !__BSD_4_4__ */
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#endif /* !HAVE_UNISTD_H */
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/* Stuff from the jobs.c file. */
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extern pid_t original_pgrp, shell_pgrp, pipeline_pgrp;
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@ -297,9 +182,12 @@ extern int job_slots;
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extern void making_children __P((void));
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extern void stop_making_children __P((void));
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extern void cleanup_the_pipeline __P((void));
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extern void save_pipeline __P((int));
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extern void restore_pipeline __P((int));
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extern void start_pipeline __P((void));
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extern int stop_pipeline __P((int, COMMAND *));
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extern void delete_job __P((int));
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extern void nohup_job __P((int));
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extern void terminate_current_pipeline __P((void));
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extern void terminate_stopped_jobs __P((void));
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@ -312,8 +200,10 @@ extern void describe_pid __P((int));
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extern void describe_pid __P((pid_t));
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#endif
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extern int list_one_job __P((JOB *, int, int, int));
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extern void list_jobs __P((int));
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extern void list_one_job __P((JOB *, int, int, int));
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extern void list_all_jobs __P((int));
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extern void list_stopped_jobs __P((int));
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extern void list_running_jobs __P((int));
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extern pid_t make_child __P((char *, int));
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extern int get_tty_state __P((void));
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@ -332,14 +222,20 @@ extern int initialize_jobs __P((void));
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extern void initialize_job_signals __P((void));
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extern int give_terminal_to __P((pid_t));
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extern void set_sigwinch_handler __P((void));
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extern void unset_sigwinch_handler __P((void));
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extern void unfreeze_jobs_list __P((void));
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extern int set_job_control __P((int));
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extern void without_job_control __P((void));
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extern void end_job_control __P((void));
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extern void restart_job_control __P((void));
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extern void set_sigchld_handler __P((void));
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extern void ignore_tty_job_signals __P((void));
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extern void default_tty_job_signals __P((void));
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#if defined (JOB_CONTROL)
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extern int job_control;
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#endif
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#endif /* __JOBS_H__ */
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#endif /* _JOBS_H_ */
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