mirror of
https://github.com/freebsd/freebsd-src.git
synced 2024-12-04 23:19:00 +00:00
237 lines
10 KiB
C
237 lines
10 KiB
C
/*
|
||
* Copyright (c) 1988, 1989, 1990 The Regents of the University of California.
|
||
* Copyright (c) 1988, 1989 by Adam de Boor
|
||
* Copyright (c) 1989 by Berkeley Softworks
|
||
* All rights reserved.
|
||
*
|
||
* This code is derived from software contributed to Berkeley by
|
||
* Adam de Boor.
|
||
*
|
||
* Redistribution and use in source and binary forms, with or without
|
||
* modification, are permitted provided that the following conditions
|
||
* are met:
|
||
* 1. Redistributions of source code must retain the above copyright
|
||
* notice, this list of conditions and the following disclaimer.
|
||
* 2. Redistributions in binary form must reproduce the above copyright
|
||
* notice, this list of conditions and the following disclaimer in the
|
||
* documentation and/or other materials provided with the distribution.
|
||
* 3. All advertising materials mentioning features or use of this software
|
||
* must display the following acknowledgement:
|
||
* This product includes software developed by the University of
|
||
* California, Berkeley and its contributors.
|
||
* 4. Neither the name of the University nor the names of its contributors
|
||
* may be used to endorse or promote products derived from this software
|
||
* without specific prior written permission.
|
||
*
|
||
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||
* SUCH DAMAGE.
|
||
*
|
||
* from: @(#)job.h 8.1 (Berkeley) 6/6/93
|
||
* $FreeBSD$
|
||
*/
|
||
|
||
/*-
|
||
* job.h --
|
||
* Definitions pertaining to the running of jobs in parallel mode.
|
||
* Exported from job.c for the use of remote-execution modules.
|
||
*/
|
||
#ifndef _JOB_H_
|
||
#define _JOB_H_
|
||
|
||
#define TMPPAT "/tmp/makeXXXXXXXXXX"
|
||
|
||
/*
|
||
* The SEL_ constants determine the maximum amount of time spent in select
|
||
* before coming out to see if a child has finished. SEL_SEC is the number of
|
||
* seconds and SEL_USEC is the number of micro-seconds
|
||
*/
|
||
#define SEL_SEC 0
|
||
#define SEL_USEC 100000
|
||
|
||
|
||
/*-
|
||
* Job Table definitions.
|
||
*
|
||
* Each job has several things associated with it:
|
||
* 1) The process id of the child shell
|
||
* 2) The graph node describing the target being made by this job
|
||
* 3) A LstNode for the first command to be saved after the job
|
||
* completes. This is NILLNODE if there was no "..." in the job's
|
||
* commands.
|
||
* 4) An FILE* for writing out the commands. This is only
|
||
* used before the job is actually started.
|
||
* 5) A union of things used for handling the shell's output. Different
|
||
* parts of the union are used based on the value of the usePipes
|
||
* flag. If it is true, the output is being caught via a pipe and
|
||
* the descriptors of our pipe, an array in which output is line
|
||
* buffered and the current position in that buffer are all
|
||
* maintained for each job. If, on the other hand, usePipes is false,
|
||
* the output is routed to a temporary file and all that is kept
|
||
* is the name of the file and the descriptor open to the file.
|
||
* 6) An identifier provided by and for the exclusive use of the
|
||
* Rmt module.
|
||
* 7) A word of flags which determine how the module handles errors,
|
||
* echoing, etc. for the job
|
||
*
|
||
* The job "table" is kept as a linked Lst in 'jobs', with the number of
|
||
* active jobs maintained in the 'nJobs' variable. At no time will this
|
||
* exceed the value of 'maxJobs', initialized by the Job_Init function.
|
||
*
|
||
* When a job is finished, the Make_Update function is called on each of the
|
||
* parents of the node which was just remade. This takes care of the upward
|
||
* traversal of the dependency graph.
|
||
*/
|
||
#define JOB_BUFSIZE 1024
|
||
typedef struct Job {
|
||
int pid; /* The child's process ID */
|
||
char tfile[sizeof(TMPPAT)];
|
||
/* Temporary file to use for job */
|
||
GNode *node; /* The target the child is making */
|
||
LstNode tailCmds; /* The node of the first command to be
|
||
* saved when the job has been run */
|
||
FILE *cmdFILE; /* When creating the shell script, this is
|
||
* where the commands go */
|
||
int rmtID; /* ID returned from Rmt module */
|
||
short flags; /* Flags to control treatment of job */
|
||
#define JOB_IGNERR 0x001 /* Ignore non-zero exits */
|
||
#define JOB_SILENT 0x002 /* no output */
|
||
#define JOB_SPECIAL 0x004 /* Target is a special one. i.e. run it locally
|
||
* if we can't export it and maxLocal is 0 */
|
||
#define JOB_IGNDOTS 0x008 /* Ignore "..." lines when processing
|
||
* commands */
|
||
#define JOB_REMOTE 0x010 /* Job is running remotely */
|
||
#define JOB_FIRST 0x020 /* Job is first job for the node */
|
||
#define JOB_REMIGRATE 0x040 /* Job needs to be remigrated */
|
||
#define JOB_RESTART 0x080 /* Job needs to be completely restarted */
|
||
#define JOB_RESUME 0x100 /* Job needs to be resumed b/c it stopped,
|
||
* for some reason */
|
||
#define JOB_CONTINUING 0x200 /* We are in the process of resuming this job.
|
||
* Used to avoid infinite recursion between
|
||
* JobFinish and JobRestart */
|
||
union {
|
||
struct {
|
||
int op_inPipe; /* Input side of pipe associated
|
||
* with job's output channel */
|
||
int op_outPipe; /* Output side of pipe associated with
|
||
* job's output channel */
|
||
char op_outBuf[JOB_BUFSIZE + 1];
|
||
/* Buffer for storing the output of the
|
||
* job, line by line */
|
||
int op_curPos; /* Current position in op_outBuf */
|
||
} o_pipe; /* data used when catching the output via
|
||
* a pipe */
|
||
struct {
|
||
char of_outFile[sizeof(TMPPAT)];
|
||
/* Name of file to which shell output
|
||
* was rerouted */
|
||
int of_outFd; /* Stream open to the output
|
||
* file. Used to funnel all
|
||
* from a single job to one file
|
||
* while still allowing
|
||
* multiple shell invocations */
|
||
} o_file; /* Data used when catching the output in
|
||
* a temporary file */
|
||
} output; /* Data for tracking a shell's output */
|
||
} Job;
|
||
|
||
#define outPipe output.o_pipe.op_outPipe
|
||
#define inPipe output.o_pipe.op_inPipe
|
||
#define outBuf output.o_pipe.op_outBuf
|
||
#define curPos output.o_pipe.op_curPos
|
||
#define outFile output.o_file.of_outFile
|
||
#define outFd output.o_file.of_outFd
|
||
|
||
|
||
/*-
|
||
* Shell Specifications:
|
||
* Each shell type has associated with it the following information:
|
||
* 1) The string which must match the last character of the shell name
|
||
* for the shell to be considered of this type. The longest match
|
||
* wins.
|
||
* 2) A command to issue to turn off echoing of command lines
|
||
* 3) A command to issue to turn echoing back on again
|
||
* 4) What the shell prints, and its length, when given the echo-off
|
||
* command. This line will not be printed when received from the shell
|
||
* 5) A boolean to tell if the shell has the ability to control
|
||
* error checking for individual commands.
|
||
* 6) The string to turn this checking on.
|
||
* 7) The string to turn it off.
|
||
* 8) The command-flag to give to cause the shell to start echoing
|
||
* commands right away.
|
||
* 9) The command-flag to cause the shell to Lib_Exit when an error is
|
||
* detected in one of the commands.
|
||
*
|
||
* Some special stuff goes on if a shell doesn't have error control. In such
|
||
* a case, errCheck becomes a printf template for echoing the command,
|
||
* should echoing be on and ignErr becomes another printf template for
|
||
* executing the command while ignoring the return status. If either of these
|
||
* strings is empty when hasErrCtl is FALSE, the command will be executed
|
||
* anyway as is and if it causes an error, so be it.
|
||
*/
|
||
typedef struct Shell {
|
||
char *name; /* the name of the shell. For Bourne and C
|
||
* shells, this is used only to find the
|
||
* shell description when used as the single
|
||
* source of a .SHELL target. For user-defined
|
||
* shells, this is the full path of the shell.
|
||
*/
|
||
Boolean hasEchoCtl; /* True if both echoOff and echoOn defined */
|
||
char *echoOff; /* command to turn off echo */
|
||
char *echoOn; /* command to turn it back on again */
|
||
char *noPrint; /* command to skip when printing output from
|
||
* shell. This is usually the command which
|
||
* was executed to turn off echoing */
|
||
int noPLen; /* length of noPrint command */
|
||
Boolean hasErrCtl; /* set if can control error checking for
|
||
* individual commands */
|
||
char *errCheck; /* string to turn error checking on */
|
||
char *ignErr; /* string to turn off error checking */
|
||
/*
|
||
* command-line flags
|
||
*/
|
||
char *echo; /* echo commands */
|
||
char *exit; /* exit on error */
|
||
} Shell;
|
||
|
||
|
||
extern char *targFmt; /* Format string for banner that separates
|
||
* output from multiple jobs. Contains a
|
||
* single %s where the name of the node being
|
||
* made should be put. */
|
||
extern GNode *lastNode; /* Last node for which a banner was printed.
|
||
* If Rmt module finds it necessary to print
|
||
* a banner, it should set this to the node
|
||
* for which the banner was printed */
|
||
extern int nJobs; /* Number of jobs running (local and remote) */
|
||
extern int nLocal; /* Number of jobs running locally */
|
||
extern Lst jobs; /* List of active job descriptors */
|
||
extern Lst stoppedJobs; /* List of jobs that are stopped or didn't
|
||
* quite get started */
|
||
extern Boolean jobFull; /* Non-zero if no more jobs should/will start*/
|
||
|
||
|
||
void Job_Touch __P((GNode *, Boolean));
|
||
Boolean Job_CheckCommands __P((GNode *, void (*abortProc )(char *, ...)));
|
||
void Job_CatchChildren __P((Boolean));
|
||
void Job_CatchOutput __P((void));
|
||
void Job_Make __P((GNode *));
|
||
void Job_Init __P((int, int));
|
||
Boolean Job_Full __P((void));
|
||
Boolean Job_Empty __P((void));
|
||
ReturnStatus Job_ParseShell __P((char *));
|
||
int Job_End __P((void));
|
||
void Job_Wait __P((void));
|
||
void Job_AbortAll __P((void));
|
||
void JobFlagForMigration __P((int));
|
||
|
||
#endif /* _JOB_H_ */
|