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7a2029bac2
that get included just where they are needed. All headers include the headers that they need to compile (just with an empty .c file). Sort includes alphabetically where apropriate and fix some duplicate commenting for struct Job, struct GNode and struct Shell by removing one version and inlining the comments into the structure declaration (the comments have been somewhat outdated). This patch does not contain functional changes (checked with md5). Submitted by: Max Okumoto <okumoto@ucsd.edu>
249 lines
8.1 KiB
C
249 lines
8.1 KiB
C
/*-
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* Copyright (c) 1988, 1989, 1990, 1993
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* The Regents of the University of California. All rights reserved.
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* Copyright (c) 1988, 1989 by Adam de Boor
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* Copyright (c) 1989 by Berkeley Softworks
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* All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Adam de Boor.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)job.h 8.1 (Berkeley) 6/6/93
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* $FreeBSD$
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*/
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#ifndef job_h_4678dfd1
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#define job_h_4678dfd1
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/*-
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* job.h --
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* Definitions pertaining to the running of jobs in parallel mode.
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*/
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#include <stdio.h>
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#include "sprite.h"
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struct GNode;
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struct LstNode;
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#define TMPPAT "/tmp/makeXXXXXXXXXX"
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#ifndef USE_KQUEUE
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/*
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* The SEL_ constants determine the maximum amount of time spent in select
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* before coming out to see if a child has finished. SEL_SEC is the number of
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* seconds and SEL_USEC is the number of micro-seconds
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*/
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#define SEL_SEC 2
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#define SEL_USEC 0
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#endif /* !USE_KQUEUE */
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/*
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* Job Table definitions.
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*
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* The job "table" is kept as a linked Lst in 'jobs', with the number of
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* active jobs maintained in the 'nJobs' variable. At no time will this
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* exceed the value of 'maxJobs', initialized by the Job_Init function.
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*
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* When a job is finished, the Make_Update function is called on each of the
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* parents of the node which was just remade. This takes care of the upward
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* traversal of the dependency graph.
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*/
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#define JOB_BUFSIZE 1024
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typedef struct Job {
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int pid; /* The child's process ID */
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/* Temporary file to use for job */
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char tfile[sizeof(TMPPAT)];
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struct GNode *node; /* The target the child is making */
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/*
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* A LstNode for the first command to be saved after the job completes.
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* This is NULL if there was no "..." in the job's commands.
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*/
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LstNode *tailCmds;
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/*
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* An FILE* for writing out the commands. This is only
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* used before the job is actually started.
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*/
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FILE *cmdFILE;
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/*
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* A word of flags which determine how the module handles errors,
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* echoing, etc. for the job
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*/
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short flags; /* Flags to control treatment of job */
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#define JOB_IGNERR 0x001 /* Ignore non-zero exits */
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#define JOB_SILENT 0x002 /* no output */
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#define JOB_SPECIAL 0x004 /* Target is a special one. i.e. run it locally
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* if we can't export it and maxLocal is 0 */
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#define JOB_IGNDOTS 0x008 /* Ignore "..." lines when processing
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* commands */
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#define JOB_FIRST 0x020 /* Job is first job for the node */
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#define JOB_RESTART 0x080 /* Job needs to be completely restarted */
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#define JOB_RESUME 0x100 /* Job needs to be resumed b/c it stopped,
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* for some reason */
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#define JOB_CONTINUING 0x200 /* We are in the process of resuming this job.
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* Used to avoid infinite recursion between
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* JobFinish and JobRestart */
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/* union for handling shell's output */
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union {
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/*
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* This part is used when usePipes is true.
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* The output is being caught via a pipe and the descriptors
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* of our pipe, an array in which output is line buffered and
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* the current position in that buffer are all maintained for
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* each job.
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*/
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struct {
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/*
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* Input side of pipe associated with
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* job's output channel
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*/
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int op_inPipe;
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/*
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* Output side of pipe associated with job's
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* output channel
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*/
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int op_outPipe;
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/*
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* Buffer for storing the output of the
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* job, line by line
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*/
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char op_outBuf[JOB_BUFSIZE + 1];
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/* Current position in op_outBuf */
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int op_curPos;
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} o_pipe;
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/*
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* If usePipes is false the output is routed to a temporary
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* file and all that is kept is the name of the file and the
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* descriptor open to the file.
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*/
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struct {
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/* Name of file to which shell output was rerouted */
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char of_outFile[sizeof(TMPPAT)];
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/*
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* Stream open to the output file. Used to funnel all
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* from a single job to one file while still allowing
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* multiple shell invocations
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*/
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int of_outFd;
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} o_file;
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} output; /* Data for tracking a shell's output */
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} Job;
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#define outPipe output.o_pipe.op_outPipe
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#define inPipe output.o_pipe.op_inPipe
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#define outBuf output.o_pipe.op_outBuf
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#define curPos output.o_pipe.op_curPos
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#define outFile output.o_file.of_outFile
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#define outFd output.o_file.of_outFd
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/*-
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* Shell Specifications:
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*
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* Some special stuff goes on if a shell doesn't have error control. In such
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* a case, errCheck becomes a printf template for echoing the command,
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* should echoing be on and ignErr becomes another printf template for
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* executing the command while ignoring the return status. If either of these
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* strings is empty when hasErrCtl is FALSE, the command will be executed
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* anyway as is and if it causes an error, so be it.
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*/
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#define DEF_SHELL_STRUCT(TAG, CONST) \
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struct TAG { \
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/* \
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* the name of the shell. For Bourne and C shells, this is used \
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* only to find the shell description when used as the single \
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* source of a .SHELL target. For user-defined shells, this is \
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* the full path of the shell. \
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*/ \
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CONST char *name; \
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\
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/* True if both echoOff and echoOn defined */ \
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Boolean hasEchoCtl; \
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\
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CONST char *echoOff; /* command to turn off echo */ \
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CONST char *echoOn; /* command to turn it back on */\
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\
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/* \
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* What the shell prints, and its length, when given the \
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* echo-off command. This line will not be printed when \
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* received from the shell. This is usually the command which \
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* was executed to turn off echoing \
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*/ \
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CONST char *noPrint; \
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int noPLen; /* length of noPrint command */ \
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\
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/* set if can control error checking for individual commands */ \
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Boolean hasErrCtl; \
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\
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/* string to turn error checking on */ \
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CONST char *errCheck; \
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\
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/* string to turn off error checking */ \
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CONST char *ignErr; \
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\
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CONST char *echo; /* command line flag: echo commands */ \
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CONST char *exit; /* command line flag: exit on error */ \
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}
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typedef DEF_SHELL_STRUCT(Shell,) Shell;
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extern char *shellPath;
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extern char *shellName;
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extern int maxJobs; /* Number of jobs that may run */
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void Shell_Init(void);
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void Job_Touch(struct GNode *, Boolean);
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Boolean Job_CheckCommands(struct GNode *, void (*abortProc)(const char *, ...));
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void Job_CatchChildren(Boolean);
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void Job_CatchOutput(int flag);
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void Job_Make(struct GNode *);
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void Job_Init(int);
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Boolean Job_Full(void);
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Boolean Job_Empty(void);
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ReturnStatus Job_ParseShell(char *);
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int Job_Finish(void);
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void Job_Wait(void);
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void Job_AbortAll(void);
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#endif /* job_h_4678dfd1 */
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