diff options
Diffstat (limited to 'job.h')
| -rw-r--r-- | job.h | 116 |
1 files changed, 12 insertions, 104 deletions
@@ -1,4 +1,4 @@ -/* $NetBSD: job.h,v 1.81 2025/01/03 04:51:42 rillig Exp $ */ +/* $NetBSD: job.h,v 1.84 2025/04/22 19:28:50 rillig Exp $ */ /* * Copyright (c) 1988, 1989, 1990 The Regents of the University of California. @@ -78,106 +78,7 @@ #ifndef MAKE_JOB_H #define MAKE_JOB_H -#define TMPPAT "makeXXXXXX" /* relative to tmpdir */ - -#ifdef USE_SELECT -/* - * Emulate poll() in terms of select(). This is not a complete - * emulation but it is sufficient for make's purposes. - */ - -#define poll emul_poll -#define pollfd emul_pollfd - -struct emul_pollfd { - int fd; - short events; - short revents; -}; - -#define POLLIN 0x0001 -#define POLLOUT 0x0004 - -int emul_poll(struct pollfd *, int, int); -#endif - -/* - * The POLL_MSEC constant determines the maximum number of milliseconds spent - * in poll before coming out to see if a child has finished. - */ -#define POLL_MSEC 5000 - -struct pollfd; - - -#ifdef USE_META -# include "meta.h" -#endif - -typedef enum JobStatus { - JOB_ST_FREE = 0, /* Job is available */ - JOB_ST_SET_UP = 1, /* Job is allocated but otherwise invalid */ - /* XXX: What about the 2? */ - JOB_ST_RUNNING = 3, /* Job is running, pid valid */ - JOB_ST_FINISHED = 4 /* Job is done (ie after SIGCHLD) */ -} JobStatus; - -/* - * A Job manages the shell commands that are run to create a single target. - * Each job is run in a separate subprocess by a shell. Several jobs can run - * in parallel. - * - * The shell commands for the target are written to a temporary file, - * then the shell is run with the temporary file as stdin, and the output - * of that shell is captured via a pipe. - * - * When a job is finished, Make_Update updates all parents of the node - * that was just remade, marking them as ready to be made next if all - * other dependencies are finished as well. - */ -typedef struct Job { - /* The process ID of the shell running the commands */ - int pid; - - /* The target the child is making */ - GNode *node; - - /* - * If one of the shell commands is "...", all following commands are - * delayed until the .END node is made. This list node points to the - * first of these commands, if any. - */ - StringListNode *tailCmds; - - /* This is where the shell commands go. */ - FILE *cmdFILE; - - int exit_status; /* from wait4() in signal handler */ - - JobStatus status; - - bool suspended; - - /* Ignore non-zero exits */ - bool ignerr; - /* Output the command before or instead of running it. */ - bool echo; - /* Target is a special one. */ - bool special; - - int inPipe; /* Pipe for reading output from job */ - int outPipe; /* Pipe for writing control commands */ - struct pollfd *inPollfd; /* pollfd associated with inPipe */ - -#define JOB_BUFSIZE 1024 - /* Buffer for storing the output of the job, line by line. */ - char outBuf[JOB_BUFSIZE + 1]; - size_t curPos; /* Current position in outBuf. */ - -#ifdef USE_META - struct BuildMon bm; -#endif -} Job; +typedef struct Job Job; extern char *shellPath; extern const char *shellName; @@ -187,6 +88,11 @@ extern int jobTokensRunning; /* tokens currently "out" */ void Shell_Init(void); const char *Shell_GetNewline(void) MAKE_ATTR_USE; + +void TokenPool_Init(int, int, int); +bool TokenPool_Take(void) MAKE_ATTR_USE; +void TokenPool_Return(void); + void Job_Touch(GNode *, bool); bool Job_CheckCommands(GNode *, void (*abortProc)(const char *, ...)) MAKE_ATTR_USE; @@ -201,12 +107,14 @@ void Job_End(void); #endif void Job_Wait(void); void Job_AbortAll(void); -void Job_TokenReturn(void); -bool Job_TokenWithdraw(void) MAKE_ATTR_USE; -void Job_ServerStart(int, int, int); void Job_SetPrefix(void); bool Job_RunTarget(const char *, const char *); void Job_FlagsToString(const Job *, char *, size_t); int Job_TempFile(const char *, char *, size_t) MAKE_ATTR_USE; +#ifdef USE_META +struct BuildMon *Job_BuildMon(Job *) MAKE_ATTR_USE; +#endif +GNode *Job_Node(Job *) MAKE_ATTR_USE; +int Job_Pid(Job *) MAKE_ATTR_USE; #endif |