diff options
author | Jari Aalto <jari.aalto@cante.net> | 1996-12-23 17:02:34 +0000 |
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committer | Jari Aalto <jari.aalto@cante.net> | 2009-09-12 16:46:49 +0000 |
commit | ccc6cda312fea9f0468ee65b8f368e9653e1380b (patch) | |
tree | b059878adcfd876c4acb8030deda1eeb918c7e75 /jobs.h | |
parent | 726f63884db0132f01745f1fb4465e6621088ccf (diff) | |
download | bash-ccc6cda312fea9f0468ee65b8f368e9653e1380b.tar.gz |
Imported from ../bash-2.0.tar.gz.
Diffstat (limited to 'jobs.h')
-rw-r--r-- | jobs.h | 190 |
1 files changed, 43 insertions, 147 deletions
@@ -18,8 +18,8 @@ with Bash; see the file COPYING. If not, write to the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ -#if !defined (__JOBS_H__) -# define __JOBS_H__ +#if !defined (_JOBS_H_) +# define _JOBS_H_ #include "quit.h" #include "siglist.h" @@ -27,93 +27,26 @@ #include "stdc.h" /* Defines controlling the fashion in which jobs are listed. */ -#define JLIST_STANDARD 0 -#define JLIST_LONG 1 -#define JLIST_PID_ONLY 2 -#define JLIST_CHANGED_ONLY 3 - -#if defined (HAVE_WAIT_H) +#define JLIST_STANDARD 0 +#define JLIST_LONG 1 +#define JLIST_PID_ONLY 2 +#define JLIST_CHANGED_ONLY 3 +#define JLIST_NONINTERACTIVE 4 + +/* If _POSIX_VERSION is not defined, we assume that <sys/wait.h> defines + a `union wait' and various macros used to manipulate it. Look in + bashwait.h for the things we expect to find. */ +#if defined (HAVE_SYS_WAIT_H) # include <sys/wait.h> -#else /* !HAVE_WAIT_H */ - -# include "bash_endian.h" - +#else /* !HAVE_SYS_WAIT_H */ # if !defined (_POSIX_VERSION) -# if defined (LITTLE_ENDIAN) -union wait - { - int w_status; /* used in syscall */ - - /* Terminated process status. */ - struct - { - unsigned short - w_Termsig : 7, /* termination signal */ - w_Coredump : 1, /* core dump indicator */ - w_Retcode : 8, /* exit code if w_termsig==0 */ - w_Fill1 : 16; /* high 16 bits unused */ - } w_T; - - /* Stopped process status. Returned - only for traced children unless requested - with the WUNTRACED option bit. */ - struct - { - unsigned short - w_Stopval : 8, /* == W_STOPPED if stopped */ - w_Stopsig : 8, /* actually zero on XENIX */ - w_Fill2 : 16; /* high 16 bits unused */ - } w_S; - }; - -# else /* !LITTLE_ENDIAN */ - -/* This is for big-endian machines like the IBM RT, HP 9000, or Sun-3 */ - -union wait - { - int w_status; /* used in syscall */ - - /* Terminated process status. */ - struct - { - unsigned short w_Fill1 : 16; /* high 16 bits unused */ - unsigned w_Retcode : 8; /* exit code if w_termsig==0 */ - unsigned w_Coredump : 1; /* core dump indicator */ - unsigned w_Termsig : 7; /* termination signal */ - } w_T; - - /* Stopped process status. Returned - only for traced children unless requested - with the WUNTRACED option bit. */ - struct - { - unsigned short w_Fill2 : 16; /* high 16 bits unused */ - unsigned w_Stopsig : 8; /* signal that stopped us */ - unsigned w_Stopval : 8; /* == W_STOPPED if stopped */ - } w_S; - }; - -# endif /* !LITTLE_ENDIAN */ - -# define w_termsig w_T.w_Termsig -# define w_coredump w_T.w_Coredump -# define w_retcode w_T.w_Retcode -# define w_stopval w_S.w_Stopval -# define w_stopsig w_S.w_Stopsig - -/* Note that sys/wait.h defines these for Posix systems. */ -# define WSTOPPED 0177 -# define WIFSTOPPED(x) (((x) . w_stopval) == WSTOPPED) -# define WIFEXITED(x) ((! (WIFSTOPPED (x))) && (((x) . w_termsig) == 0)) -# define WIFSIGNALED(x) ((! (WIFSTOPPED (x))) && (((x) . w_termsig) != 0)) -# endif /* !_POSIX_VERSION */ -#endif /* !HAVE_WAIT_H */ +# include "bashwait.h" +# endif +#endif /* !HAVE_SYS_WAIT_H */ /* How to get the status of a job. For Posix, this is just an int, but for other systems we have to crack the union wait. */ #if !defined (_POSIX_VERSION) -# define pid_t int typedef union wait WAIT; # define WSTATUS(t) (t.w_status) #else /* _POSIX_VERSION */ @@ -200,10 +133,19 @@ typedef struct process { typedef enum { JRUNNING, JSTOPPED, JDEAD, JMIXED } JOB_STATE; #define JOBSTATE(job) (jobs[(job)]->state) +#define STOPPED(j) (jobs[(j)]->state == JSTOPPED) +#define RUNNING(j) (jobs[(j)]->state == JRUNNING) +#define DEADJOB(j) (jobs[(j)]->state == JDEAD) + /* Values for the FLAGS field in the JOB struct below. */ #define J_FOREGROUND 0x01 /* Non-zero if this is running in the foreground. */ #define J_NOTIFIED 0x02 /* Non-zero if already notified about job state. */ #define J_JOBCONTROL 0x04 /* Non-zero if this job started under job control. */ +#define J_NOHUP 0x08 /* Don't send SIGHUP to job if shell gets SIGHUP. */ + +#define IS_FOREGROUND(j) ((jobs[j]->flags & J_FOREGROUND) != 0) +#define IS_NOTIFIED(j) ((jobs[j]->flags & J_NOTIFIED) != 0) +#define IS_JOBCONTROL(j) ((jobs[j]->flags & J_JOBCONTROL) != 0) typedef struct job { char *wd; /* The working directory at time of invocation. */ @@ -213,6 +155,8 @@ typedef struct job { int flags; /* Flags word: J_NOTIFIED, J_FOREGROUND, or J_JOBCONTROL. */ #if defined (JOB_CONTROL) COMMAND *deferred; /* Commands that will execute when this job is done. */ + VFunction *j_cleanup; /* Cleanup function to call when job marked JDEAD */ + PTR_T cleanarg; /* Argument passed to (*j_cleanup)() */ #endif /* JOB_CONTROL */ } JOB; @@ -222,69 +166,10 @@ typedef struct job { /* A value which cannot be a process ID. */ #define NO_PID (pid_t)-1 -#if !defined (_POSIX_VERSION) && !defined (sigmask) -# define sigmask(x) (1 << ((x)-1)) -#endif /* !POSIX && !sigmask */ - -#if !defined (SIGABRT) -# define SIGABRT SIGIOT -#endif /* !SIGABRT */ - -#if !defined (SIGCHLD) -# define SIGCHLD SIGCLD -#endif /* !SIGCHLD */ - -#if !defined (_POSIX_VERSION) -# if !defined (SIG_BLOCK) -# define SIG_BLOCK 2 -# define SIG_SETMASK 3 -# endif /* SIG_BLOCK */ - -/* Type of a signal set. */ -# define sigset_t int - -/* Make sure there is nothing inside the signal set. */ -# define sigemptyset(set) (*(set) = 0) - -/* Initialize the signal set to hold all signals. */ -# define sigfillset(set) (*set) = sigmask (NSIG) - 1 - -/* Add SIG to the contents of SET. */ -# define sigaddset(set, sig) *(set) |= sigmask (sig) - -/* Delete SIG from signal set SET. */ -# define sigdelset(set, sig) *(set) &= ~sigmask (sig) - -/* Is SIG a member of the signal set SET? */ -# define sigismember(set, sig) ((*(set) & sigmask (sig)) != 0) - -/* Suspend the process until the reception of one of the signals - not present in SET. */ -# define sigsuspend(set) sigpause (*(set)) -#endif /* !_POSIX_VERSION */ - -/* These definitions are used both in POSIX and non-POSIX implementations. */ - -#define BLOCK_SIGNAL(sig, nvar, ovar) \ - sigemptyset (&nvar); \ - sigaddset (&nvar, sig); \ - sigemptyset (&ovar); \ - sigprocmask (SIG_BLOCK, &nvar, &ovar) - -#if defined (_POSIX_VERSION) -# define BLOCK_CHILD(nvar, ovar) \ - BLOCK_SIGNAL (SIGCHLD, nvar, ovar) -# define UNBLOCK_CHILD(ovar) \ - sigprocmask (SIG_SETMASK, &ovar, (sigset_t *) NULL) -#else /* !_POSIX_VERSION */ -# define BLOCK_CHILD(nvar, ovar) ovar = sigblock (sigmask (SIGCHLD)) -# define UNBLOCK_CHILD(ovar) sigsetmask (ovar) -#endif /* !_POSIX_VERSION */ - /* System calls. */ -#if !defined (SunOS5) && !defined (USGr4_2) && !defined (__BSD_4_4__) +#if !defined (HAVE_UNISTD_H) extern pid_t fork (), getpid (), getpgrp (); -#endif /* !SunOS5 && !USGr4_2 && !__BSD_4_4__ */ +#endif /* !HAVE_UNISTD_H */ /* Stuff from the jobs.c file. */ extern pid_t original_pgrp, shell_pgrp, pipeline_pgrp; @@ -297,9 +182,12 @@ extern int job_slots; extern void making_children __P((void)); extern void stop_making_children __P((void)); extern void cleanup_the_pipeline __P((void)); +extern void save_pipeline __P((int)); +extern void restore_pipeline __P((int)); extern void start_pipeline __P((void)); extern int stop_pipeline __P((int, COMMAND *)); extern void delete_job __P((int)); +extern void nohup_job __P((int)); extern void terminate_current_pipeline __P((void)); extern void terminate_stopped_jobs __P((void)); @@ -312,8 +200,10 @@ extern void describe_pid __P((int)); extern void describe_pid __P((pid_t)); #endif -extern int list_one_job __P((JOB *, int, int, int)); -extern void list_jobs __P((int)); +extern void list_one_job __P((JOB *, int, int, int)); +extern void list_all_jobs __P((int)); +extern void list_stopped_jobs __P((int)); +extern void list_running_jobs __P((int)); extern pid_t make_child __P((char *, int)); extern int get_tty_state __P((void)); @@ -332,14 +222,20 @@ extern int initialize_jobs __P((void)); extern void initialize_job_signals __P((void)); extern int give_terminal_to __P((pid_t)); +extern void set_sigwinch_handler __P((void)); +extern void unset_sigwinch_handler __P((void)); + +extern void unfreeze_jobs_list __P((void)); extern int set_job_control __P((int)); extern void without_job_control __P((void)); extern void end_job_control __P((void)); extern void restart_job_control __P((void)); extern void set_sigchld_handler __P((void)); +extern void ignore_tty_job_signals __P((void)); +extern void default_tty_job_signals __P((void)); #if defined (JOB_CONTROL) extern int job_control; #endif -#endif /* __JOBS_H__ */ +#endif /* _JOBS_H_ */ |