2 * Copyright (c) 1988, 1989, 1990, 1993
3 * The Regents of the University of California. All rights reserved.
4 * Copyright (c) 1988, 1989 by Adam de Boor
5 * Copyright (c) 1989 by Berkeley Softworks
8 * This code is derived from software contributed to Berkeley by
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39 * from: @(#)job.h 8.1 (Berkeley) 6/6/93
40 * $FreeBSD: src/usr.bin/make/job.h,v 1.11 2000/01/17 06:43:41 kris Exp $
41 * $DragonFly: src/usr.bin/make/job.h,v 1.19 2005/02/01 22:05:36 okumoto Exp $
44 #ifndef job_h_4678dfd1
45 #define job_h_4678dfd1
49 * Definitions pertaining to the running of jobs in parallel mode.
59 #define TMPPAT "/tmp/makeXXXXXXXXXX"
63 * The SEL_ constants determine the maximum amount of time spent in select
64 * before coming out to see if a child has finished. SEL_SEC is the number of
65 * seconds and SEL_USEC is the number of micro-seconds
69 #endif /* !USE_KQUEUE */
72 * Job Table definitions.
74 * The job "table" is kept as a linked Lst in 'jobs', with the number of
75 * active jobs maintained in the 'nJobs' variable. At no time will this
76 * exceed the value of 'maxJobs', initialized by the Job_Init function.
78 * When a job is finished, the Make_Update function is called on each of the
79 * parents of the node which was just remade. This takes care of the upward
80 * traversal of the dependency graph.
82 #define JOB_BUFSIZE 1024
84 int pid; /* The child's process ID */
86 /* Temporary file to use for job */
87 char tfile[sizeof(TMPPAT)];
89 struct GNode *node; /* The target the child is making */
92 * A LstNode for the first command to be saved after the job completes.
93 * This is NULL if there was no "..." in the job's commands.
98 * An FILE* for writing out the commands. This is only
99 * used before the job is actually started.
104 * A word of flags which determine how the module handles errors,
105 * echoing, etc. for the job
107 short flags; /* Flags to control treatment of job */
108 #define JOB_IGNERR 0x001 /* Ignore non-zero exits */
109 #define JOB_SILENT 0x002 /* no output */
110 #define JOB_SPECIAL 0x004 /* Target is a special one. i.e. run it locally
111 * if we can't export it and maxLocal is 0 */
112 #define JOB_IGNDOTS 0x008 /* Ignore "..." lines when processing
114 #define JOB_FIRST 0x020 /* Job is first job for the node */
115 #define JOB_RESTART 0x080 /* Job needs to be completely restarted */
116 #define JOB_RESUME 0x100 /* Job needs to be resumed b/c it stopped,
118 #define JOB_CONTINUING 0x200 /* We are in the process of resuming this job.
119 * Used to avoid infinite recursion between
120 * JobFinish and JobRestart */
122 /* union for handling shell's output */
125 * This part is used when usePipes is true.
126 * The output is being caught via a pipe and the descriptors
127 * of our pipe, an array in which output is line buffered and
128 * the current position in that buffer are all maintained for
133 * Input side of pipe associated with
134 * job's output channel
139 * Output side of pipe associated with job's
145 * Buffer for storing the output of the
148 char op_outBuf[JOB_BUFSIZE + 1];
150 /* Current position in op_outBuf */
155 * If usePipes is false the output is routed to a temporary
156 * file and all that is kept is the name of the file and the
157 * descriptor open to the file.
160 /* Name of file to which shell output was rerouted */
161 char of_outFile[sizeof(TMPPAT)];
164 * Stream open to the output file. Used to funnel all
165 * from a single job to one file while still allowing
166 * multiple shell invocations
171 } output; /* Data for tracking a shell's output */
174 #define outPipe output.o_pipe.op_outPipe
175 #define inPipe output.o_pipe.op_inPipe
176 #define outBuf output.o_pipe.op_outBuf
177 #define curPos output.o_pipe.op_curPos
178 #define outFile output.o_file.of_outFile
179 #define outFd output.o_file.of_outFd
182 * Shell Specifications:
184 * Some special stuff goes on if a shell doesn't have error control. In such
185 * a case, errCheck becomes a printf template for echoing the command,
186 * should echoing be on and ignErr becomes another printf template for
187 * executing the command while ignoring the return status. If either of these
188 * strings is empty when hasErrCtl is FALSE, the command will be executed
189 * anyway as is and if it causes an error, so be it.
191 #define DEF_SHELL_STRUCT(TAG, CONST) \
194 * the name of the shell. For Bourne and C shells, this is used \
195 * only to find the shell description when used as the single \
196 * source of a .SHELL target. For user-defined shells, this is \
197 * the full path of the shell. \
201 /* True if both echoOff and echoOn defined */ \
202 Boolean hasEchoCtl; \
204 CONST char *echoOff; /* command to turn off echo */ \
205 CONST char *echoOn; /* command to turn it back on */\
208 * What the shell prints, and its length, when given the \
209 * echo-off command. This line will not be printed when \
210 * received from the shell. This is usually the command which \
211 * was executed to turn off echoing \
213 CONST char *noPrint; \
214 int noPLen; /* length of noPrint command */ \
216 /* set if can control error checking for individual commands */ \
219 /* string to turn error checking on */ \
220 CONST char *errCheck; \
222 /* string to turn off error checking */ \
223 CONST char *ignErr; \
225 CONST char *echo; /* command line flag: echo commands */ \
226 CONST char *exit; /* command line flag: exit on error */ \
229 typedef DEF_SHELL_STRUCT(Shell,) Shell;
231 extern char *shellPath;
232 extern char *shellName;
233 extern int maxJobs; /* Number of jobs that may run */
235 void Shell_Init(void);
236 void Job_Touch(struct GNode *, Boolean);
237 Boolean Job_CheckCommands(struct GNode *, void (*abortProc)(const char *, ...));
238 void Job_CatchChildren(Boolean);
239 void Job_CatchOutput(int flag);
240 void Job_Make(struct GNode *);
242 Boolean Job_Full(void);
243 Boolean Job_Empty(void);
244 ReturnStatus Job_ParseShell(char *);
245 int Job_Finish(void);
247 void Job_AbortAll(void);
249 #endif /* job_h_4678dfd1 */