projects/pjob/pjob.c

/*
 * Peter Saunders pjob.c
 * Copyright (C) 2000-2005 Peter Saunders
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 */

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <glib.h>
#include <glib/gprintf.h>
#include <poll.h>
#include <sys/types.h>
#include <sys/wait.h>

#define DEFNUMTHREAD 10
#define DEFTIMEOUT 60

/* Structure for the process to be passed to the executing thread */
struct _process_t{
        gchar *exec;
        gchar *jobname;
        GTimer *timer;
        GPid pid;
        gint stat_loc;
        gchar *file_stdout;
        gchar *file_stderr;

        GError *err;
};

typedef struct _process_t process_t;

/* Globals for config setup */
static gint numthreads = DEFNUMTHREAD;
static gboolean verbose = FALSE;
static gboolean quiet = FALSE;
static gint timeout = DEFTIMEOUT;
static gchar *parseformat = NULL;
static gchar *jobparsename = NULL;
static gchar *command = NULL;
static gchar *outdir = NULL;
static gchar *infile = NULL;
static gchar *arglist = NULL;

/* Command line options */
static GOptionEntry options[] =
{
        { "jobs", 'j', 0, G_OPTION_ARG_INT, &numthreads, "Number of jobs to run in parallel [DEFNUMTHREAD]", NULL },
        { "verbose", 'v', 0, G_OPTION_ARG_NONE, &verbose, "Be verbose", NULL },
        { "quiet", 'q', 0, G_OPTION_ARG_NONE, &quiet, "Do not print the output of the commands as they are running", NULL },
        { "timeout", 't', 0, G_OPTION_ARG_INT, &timeout, "Timeout before process is killed [DEFTIMEOUT]", NULL },
        { "format", 'f', 0, G_OPTION_ARG_STRING, &parseformat, "The order of substitiution to be used in the command", NULL },
        { "jobname", 'n', 0, G_OPTION_ARG_STRING, &jobparsename, "If format is used, which variable to use for a output dir", NULL },
        { "command", 'c', 0, G_OPTION_ARG_STRING, &command, "The command to be executed", NULL },
        { "output", 'o', 0, G_OPTION_ARG_STRING, &outdir, "Directory to put all output into", NULL },
        { "stdin", 'i', 0, G_OPTION_ARG_FILENAME, &infile, "Pass contents of filename into stdin of the executing process", NULL },
        { "argsfile", 'a', 0, G_OPTION_ARG_FILENAME, &arglist, "File for list of argumenst if you dont want to use the command line", NULL },
        { NULL }
};

/* Linked list of process jobs */
GList *proclist = NULL;

/* Take a process_t and execute it, and doing the "right thing" with the output */
void process_child(gpointer data, gpointer user_data){
        process_t *proc = (process_t*) data;
        GIOChannel *soutfile[2], *sout[2], *sinfile, *sin;
        gchar *execargv[4];
        int outpipes[2], inpipes[2];
        GError *err = NULL;

        struct pollfd fds[3];
        gint fdssize=2;

        proc->timer = g_timer_new();
        g_timer_start(proc->timer);

        /* Setup files in output dir if requested to do so */
        if(outdir != NULL){
                proc->file_stdout = g_strdup_printf("%s/%s-STDOUT", outdir, proc->jobname);
                soutfile[0] = g_io_channel_new_file(proc->file_stdout, "w", &err);

                if(soutfile[0] == NULL){
                        g_printerr("Failed to open %s for writing: %s. Skipping job\n", proc->file_stdout, err->message);
                        return;
                }
                
                proc->file_stderr = g_strdup_printf("%s/%s-STDERR", outdir, proc->jobname);
                soutfile[1] = g_io_channel_new_file(proc->file_stderr, "w", &err);

                if(soutfile[1] == NULL){
                        g_printerr("Failed to open %s for writing: %s. Skipping job\n", proc->file_stderr, err->message);
                        return;
                }       

        }


        /* Open stdin file to pass to the process */
        if(infile != NULL){
                sinfile = g_io_channel_new_file(infile, "r", NULL);
                pipe(inpipes);
        }

        /* Setup argv structure for job */
        if (verbose) g_fprintf(stderr, "Starting job '%s'\n", proc->jobname);
        execargv[0] = "/bin/sh";
        execargv[1] = "-c";
        execargv[2] = proc->exec;
        execargv[3] = NULL;

        /* Exec the job */
        if (infile == NULL){
                if( ! g_spawn_async_with_pipes(NULL, execargv, NULL, G_SPAWN_DO_NOT_REAP_CHILD, NULL, NULL, &(proc->pid), NULL, &(outpipes[0]), &(outpipes[1]), &err)){
                        g_printerr("Failed to execute job %s: %s\n", proc->jobname, err->message);
                        return;
                }
        }else{
                if( ! g_spawn_async_with_pipes(NULL, execargv, NULL, G_SPAWN_DO_NOT_REAP_CHILD, NULL, NULL, &(proc->pid), &(inpipes[1]), &(outpipes[0]), &(outpipes[1]), &err)){
                        g_printerr("Failed to execute job %s: %s\n", proc->jobname, err->message);
                        return;
                }
                close(inpipes[0]);
        }


        /* Make a stream out of the pipes for ease of reading from them */
        sout[0] = g_io_channel_unix_new(outpipes[0]);
        sout[1] = g_io_channel_unix_new(outpipes[1]);
        if(infile != NULL){
                sin = g_io_channel_unix_new(inpipes[1]);
                fds[2].fd = inpipes[1];
                fds[2].events = POLLOUT | POLLHUP;
                fdssize = 3;
        }


        /* Setup the poll events */
        fds[0].fd = outpipes[0];
        fds[1].fd = outpipes[1];
        fds[0].events = fds[1].events = POLLIN | POLLPRI | POLLHUP;
        fds[0].revents = fds[1].revents = fds[2].revents = 0;


        for(;;){
                gint x;
                gchar *readbuf;
                gint rdatasize, wdatasize;
                gboolean readdata = FALSE;
                fds[0].revents = fds[1].revents = fds[2].revents = 0;

                poll(fds, fdssize, -1);
                /* For stdout and stderr see if there is any data, and read it */
                for(x=0; x<2; x++){
                        if((fds[x].revents & POLLIN) == 0){
                                /* We have data to read */
                                g_io_channel_read_line(sout[x], &readbuf, &rdatasize, NULL, NULL);
                                if(rdatasize > 0){
                                        /* Print it if unless told not to */
                                        if(!quiet){
                                                g_printf("[%s] [%s] %s", proc->jobname, (x==0) ? "out" : "err", readbuf);
                                        }
                                        if(outdir != NULL){
                                                g_io_channel_write_chars(soutfile[x], readbuf, rdatasize, &wdatasize, NULL);
                                        }
                                        readdata = TRUE;
                                        free(readbuf);
                                }

                        }
                }
                /* See if we need to pump more data down stdin */
                if((fds[2].revents & POLLOUT) != 0){
                        /* We have data we can write */
                        gchar *nextline;
                        gint nextlinesize;
                        gint nextlinewritesize;
                        GIOStatus s;

                        /* Get the next line, and write it down the stream */
                        s = g_io_channel_read_line(sinfile, &nextline, &nextlinesize, NULL, NULL);
                        if (nextlinesize > 0){
                                g_io_channel_write_chars(sin, nextline, nextlinesize, &nextlinewritesize, NULL);
                        }
                        if (s == G_IO_STATUS_EOF){
                                g_io_channel_shutdown(sin, TRUE, NULL);
                                sin = NULL;
                                fdssize=2;
                        }

                }
                /* Even if we did get a hangup - lets make sure there is no more data to read first by looping again */
                if (readdata) continue;

                if(((fds[0].revents & POLLHUP) != 0) && ((fds[1].revents & POLLHUP) != 0)) break;
        }       

        while((waitpid(proc->pid, &(proc->stat_loc), 0)) != proc->pid);

        g_timer_stop(proc->timer);

        /* If process exited cleanly */
        if (WIFEXITED(proc->stat_loc)){
                /* Get the exit code */
                if (verbose) g_fprintf(stderr, "Job '%s' exited with code %d. Exec time: %.2f\n", proc->jobname, WEXITSTATUS(proc->stat_loc), g_timer_elapsed(proc->timer, 0));
        }else{
                /* Otherwise - find out what it died with */
                /* TODO - this doesn't work quite right.. Mainly because its looking at the shell process, so the
                 * child of the /bin/sh which does get a signal, this isn't passed up. Although, it handly tells
                 * us if the /bin/sh gets a SEGV etc ;)
                 */
                g_fprintf(stderr, "Job %s exited with signal %d. Exec time: %.2f\n", proc->jobname, (WTERMSIG(proc->stat_loc)), g_timer_elapsed(proc->timer, 0));
        }


        g_io_channel_shutdown(sout[0], TRUE, NULL);
        g_io_channel_shutdown(sout[1], TRUE, NULL);

        if((infile != NULL) && (sin != NULL)){
                g_io_channel_shutdown(sin, TRUE, NULL);
        }
        if (outdir != NULL){
                g_io_channel_shutdown(soutfile[0], TRUE, NULL);
                g_io_channel_shutdown(soutfile[1], TRUE, NULL);
        }

        g_spawn_close_pid(proc->pid);


}

/* Takes a string str, a search string, find, and string to
 * replace all occurs of find with, replace. Returns a new
 * leaving original intact.
 */
gchar *strrep(gchar *str, gchar *find, gchar *replace){
        gchar *ptr, *oldptr;
        GString *newstr = g_string_new("");
        gssize len = strlen(str);
        gint findlen = strlen(find);

        ptr = g_strstr_len(str, len, find);
        oldptr=str;
        while(ptr != NULL){
                /* Copy in data up to this point */
                g_string_append_len (newstr, oldptr, (ptr - oldptr));
                /* Put in the replacement string */
                g_string_append(newstr, replace);

                oldptr = ptr + findlen;
                /* BUG - len will now be wrong. But, i only wanted a strstr anyway :) */
                ptr = g_strstr_len(oldptr, len, find);
        }

        /* Copy remains */
        g_string_append_len (newstr, oldptr, (ptr - oldptr));

        ptr = g_string_free(newstr, FALSE);

        return ptr;
}


/* Takes a cmd before substitution, takes the characters to be substituted
 * and a line for doign the substitution with. Fills in jobname
 */
gchar *genexeccmd(gchar *cmd, gchar *fmt, gchar *line, gchar **jobname){
        gchar *newexec, *ptr;
        int x;
        gchar *linesep = " ";
        gchar *fmtsep = " ";

        gchar **line_array;
        gchar **fmt_array;

        if ( fmt == NULL ){
                /* No format given - we'll just append the options to the end of the command */
                if(jobname != NULL) *jobname = g_strdup(line);
                return g_strdup_printf("%s %s", cmd, line);
        }

        line_array = g_strsplit(line, linesep, 0);
        fmt_array = g_strsplit(fmt, fmtsep, 0);

        if(jobparsename != NULL){
                if(jobname != NULL){
                        for(x=0; fmt_array[x] != NULL; x++){
                                if (line_array[x] == NULL) break;
                                if((strcmp(fmt_array[x], jobparsename) == 0)){
                                        *jobname = g_strdup(line_array[x]);
                                        break;
                                }
                        }
                }
        }else{
                /* Not told us what they want.. We'll just use the first one */
                *jobname = g_strdup(line_array[0]);
        }

        newexec = g_strdup(cmd);
        for(x=0; line_array[x] != NULL; x++){
                if (fmt_array[x] == NULL) break;
                ptr = newexec;
                newexec = strrep(newexec, fmt_array[x], line_array[x]);
                free(ptr);
        }


        return newexec;
}

int main(int argc, char **argv){

        GThreadPool *procpool;
        GError *pp_err = NULL, *err = NULL;
        gint x;

        GOptionContext *optcontext;

        optcontext = g_option_context_new(" - parallel job executer");
        g_option_context_add_main_entries(optcontext, options, NULL);
        g_option_context_parse (optcontext, &argc, &argv, &err);

        if(command == NULL){
                g_printerr("Command required, see --help for more flags\n");
                exit(1);
        }

        if(verbose){
                g_printerr("Command '%s'\n", command);
                g_printerr("Timeout '%d'\n", timeout);
                g_printerr("Jobs '%d'\n", numthreads);
        }
        
        
        if(argc < 2 && arglist == NULL){
                /* We have no arguments */
                g_printerr("Missing arguments, see --help for details\n");
                exit(1);
        }

        if (!g_thread_supported ()){ 
                g_thread_init (NULL);
        }else{
                g_printerr("Threading not supported\n");
        }
        
        if(verbose) g_printerr("Creating a threadpool %d in size\n", numthreads);
        procpool = g_thread_pool_new(process_child, NULL, numthreads, FALSE, &pp_err);

        /* Generate the commands and push the job onto the thread pool */
        /* If no substituion is needed */
        if (arglist != NULL){
                GIOChannel *f;
                gchar *line;
                GIOStatus status;

                f = g_io_channel_new_file(arglist, "r", &err);
                if (f == NULL){
                        g_printerr("Failed to open argfile: %s\n", err->message);
                        exit(1);
                }
                status = g_io_channel_read_line(f, &line, NULL, NULL, &err);
                while(status==G_IO_STATUS_NORMAL){
                        process_t *newproc = g_new(process_t, 1);
                        newproc->err = NULL;
                        
                        line = g_strstrip(line);
                
                        newproc->exec = genexeccmd(command, parseformat, line, &(newproc->jobname));
                        proclist = g_list_append(proclist, (gpointer) newproc);
                
                        if(verbose) g_printerr("Pushing command '%s' into thread pool queue\n", newproc->exec);
                        g_thread_pool_push(procpool, (gpointer) newproc, &(newproc->err));
                        
                        status = g_io_channel_read_line(f, &line, NULL, NULL, &err);
                }
                g_io_channel_close(f);
                
        }else{
                /* substition is needed */
                for(x=1; x<argc; x++){
                        process_t *newproc = g_new(process_t, 1);
                        newproc->err = NULL;

                        newproc->exec = genexeccmd(command, parseformat, argv[x],  &(newproc->jobname));

                        proclist = g_list_append(proclist, (gpointer) newproc);

                        if(verbose) g_printerr("Pushing command '%s' into thread pool queue\n", newproc->exec);
                        g_thread_pool_push(procpool, (gpointer) newproc, &(newproc->err));
                }
        }
                

        /* Wait for the jobs to finish */
        /* TODO - Kill jobs that don't finish in time */
        while(g_thread_pool_get_num_threads(procpool) > 0){
                g_usleep(1000);
        }

        return 0;
}
Revision:	1.4
Committed:	Wed Jan 25 19:57:12 2006 UTC (18 years, 10 months ago) by pajs
Content type:	text/plain
Branch:	MAIN
Changes since 1.3:	+21 -3 lines
Log Message:	Added timers on a per job basis - it will now also give the exit code of the job The child pids now have a PPID of the pjob processes, rather than 1. Left timers on the todo list, as i may add a timer for the overall pjob - to include in the summary at the end.
#	User	Rev	Content
1	pajs	1.1	/*
2			* Peter Saunders pjob.c
3			* Copyright (C) 2000-2005 Peter Saunders
4			*
5			* This program is free software; you can redistribute it and/or
6			* modify it under the terms of the GNU General Public License
7			* as published by the Free Software Foundation; either version 2
8			* of the License, or (at your option) any later version.
9			*
10			* This program is distributed in the hope that it will be useful,
11			* but WITHOUT ANY WARRANTY; without even the implied warranty of
12			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13			* GNU General Public License for more details.
14			*
15			* You should have received a copy of the GNU General Public License
16			* along with this program; if not, write to the Free Software
17			* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
18			*
19			*/
20
21			#include <stdio.h>
22	pajs	1.2	#include <stdlib.h>
23			#include <unistd.h>
24			#include <string.h>
25	pajs	1.1	#include <glib.h>
26	pajs	1.2	#include <glib/gprintf.h>
27	pajs	1.1	#include <poll.h>
28	pajs	1.4	#include <sys/types.h>
29			#include <sys/wait.h>
30	pajs	1.1
31			#define DEFNUMTHREAD 10
32			#define DEFTIMEOUT 60
33
34			/* Structure for the process to be passed to the executing thread */
35			struct _process_t{
36			gchar *exec;
37			gchar *jobname;
38			GTimer *timer;
39			GPid pid;
40	pajs	1.4	gint stat_loc;
41	pajs	1.1	gchar *file_stdout;
42			gchar *file_stderr;
43
44			GError *err;
45			};
46
47			typedef struct _process_t process_t;
48
49			/* Globals for config setup */
50			static gint numthreads = DEFNUMTHREAD;
51			static gboolean verbose = FALSE;
52			static gboolean quiet = FALSE;
53			static gint timeout = DEFTIMEOUT;
54			static gchar *parseformat = NULL;
55			static gchar *jobparsename = NULL;
56			static gchar *command = NULL;
57			static gchar *outdir = NULL;
58			static gchar *infile = NULL;
59			static gchar *arglist = NULL;
60
61			/* Command line options */
62			static GOptionEntry options[] =
63			{
64			{ "jobs", 'j', 0, G_OPTION_ARG_INT, &numthreads, "Number of jobs to run in parallel [DEFNUMTHREAD]", NULL },
65			{ "verbose", 'v', 0, G_OPTION_ARG_NONE, &verbose, "Be verbose", NULL },
66			{ "quiet", 'q', 0, G_OPTION_ARG_NONE, &quiet, "Do not print the output of the commands as they are running", NULL },
67			{ "timeout", 't', 0, G_OPTION_ARG_INT, &timeout, "Timeout before process is killed [DEFTIMEOUT]", NULL },
68			{ "format", 'f', 0, G_OPTION_ARG_STRING, &parseformat, "The order of substitiution to be used in the command", NULL },
69			{ "jobname", 'n', 0, G_OPTION_ARG_STRING, &jobparsename, "If format is used, which variable to use for a output dir", NULL },
70			{ "command", 'c', 0, G_OPTION_ARG_STRING, &command, "The command to be executed", NULL },
71			{ "output", 'o', 0, G_OPTION_ARG_STRING, &outdir, "Directory to put all output into", NULL },
72			{ "stdin", 'i', 0, G_OPTION_ARG_FILENAME, &infile, "Pass contents of filename into stdin of the executing process", NULL },
73			{ "argsfile", 'a', 0, G_OPTION_ARG_FILENAME, &arglist, "File for list of argumenst if you dont want to use the command line", NULL },
74			{ NULL }
75			};
76
77			/* Linked list of process jobs */
78			GList *proclist = NULL;
79
80			/* Take a process_t and execute it, and doing the "right thing" with the output */
81			void process_child(gpointer data, gpointer user_data){
82			process_t proc = (process_t) data;
83			GIOChannel soutfile[2], sout[2], sinfile, sin;
84			gchar *execargv[4];
85			int outpipes[2], inpipes[2];
86			GError *err = NULL;
87
88			struct pollfd fds[3];
89			gint fdssize=2;
90
91	pajs	1.3	proc->timer = g_timer_new();
92			g_timer_start(proc->timer);
93
94	pajs	1.1	/* Setup files in output dir if requested to do so */
95			if(outdir != NULL){
96			proc->file_stdout = g_strdup_printf("%s/%s-STDOUT", outdir, proc->jobname);
97			soutfile[0] = g_io_channel_new_file(proc->file_stdout, "w", &err);
98
99			if(soutfile[0] == NULL){
100			g_printerr("Failed to open %s for writing: %s. Skipping job\n", proc->file_stdout, err->message);
101			return;
102			}
103
104			proc->file_stderr = g_strdup_printf("%s/%s-STDERR", outdir, proc->jobname);
105			soutfile[1] = g_io_channel_new_file(proc->file_stderr, "w", &err);
106
107			if(soutfile[1] == NULL){
108			g_printerr("Failed to open %s for writing: %s. Skipping job\n", proc->file_stderr, err->message);
109			return;
110			}
111
112			}
113
114
115			/* Open stdin file to pass to the process */
116			if(infile != NULL){
117			sinfile = g_io_channel_new_file(infile, "r", NULL);
118			pipe(inpipes);
119			}
120
121			/* Setup argv structure for job */
122			if (verbose) g_fprintf(stderr, "Starting job '%s'\n", proc->jobname);
123			execargv[0] = "/bin/sh";
124			execargv[1] = "-c";
125			execargv[2] = proc->exec;
126			execargv[3] = NULL;
127
128			/* Exec the job */
129			if (infile == NULL){
130	pajs	1.4	if( ! g_spawn_async_with_pipes(NULL, execargv, NULL, G_SPAWN_DO_NOT_REAP_CHILD, NULL, NULL, &(proc->pid), NULL, &(outpipes[0]), &(outpipes[1]), &err)){
131	pajs	1.1	g_printerr("Failed to execute job %s: %s\n", proc->jobname, err->message);
132			return;
133			}
134			}else{
135	pajs	1.4	if( ! g_spawn_async_with_pipes(NULL, execargv, NULL, G_SPAWN_DO_NOT_REAP_CHILD, NULL, NULL, &(proc->pid), &(inpipes[1]), &(outpipes[0]), &(outpipes[1]), &err)){
136	pajs	1.1	g_printerr("Failed to execute job %s: %s\n", proc->jobname, err->message);
137			return;
138			}
139			close(inpipes[0]);
140			}
141
142
143			/* Make a stream out of the pipes for ease of reading from them */
144			sout[0] = g_io_channel_unix_new(outpipes[0]);
145			sout[1] = g_io_channel_unix_new(outpipes[1]);
146			if(infile != NULL){
147			sin = g_io_channel_unix_new(inpipes[1]);
148			fds[2].fd = inpipes[1];
149			fds[2].events = POLLOUT \| POLLHUP;
150			fdssize = 3;
151			}
152
153
154			/* Setup the poll events */
155			fds[0].fd = outpipes[0];
156			fds[1].fd = outpipes[1];
157			fds[0].events = fds[1].events = POLLIN \| POLLPRI \| POLLHUP;
158			fds[0].revents = fds[1].revents = fds[2].revents = 0;
159
160
161			for(;;){
162			gint x;
163			gchar *readbuf;
164			gint rdatasize, wdatasize;
165			gboolean readdata = FALSE;
166			fds[0].revents = fds[1].revents = fds[2].revents = 0;
167
168			poll(fds, fdssize, -1);
169			/* For stdout and stderr see if there is any data, and read it */
170			for(x=0; x<2; x++){
171	pajs	1.3	if((fds[x].revents & POLLIN) == 0){
172	pajs	1.1	/* We have data to read */
173			g_io_channel_read_line(sout[x], &readbuf, &rdatasize, NULL, NULL);
174			if(rdatasize > 0){
175			/* Print it if unless told not to */
176			if(!quiet){
177			g_printf("[%s] [%s] %s", proc->jobname, (x==0) ? "out" : "err", readbuf);
178			}
179			if(outdir != NULL){
180			g_io_channel_write_chars(soutfile[x], readbuf, rdatasize, &wdatasize, NULL);
181			}
182			readdata = TRUE;
183			free(readbuf);
184			}
185
186			}
187			}
188			/* See if we need to pump more data down stdin */
189	pajs	1.3	if((fds[2].revents & POLLOUT) != 0){
190	pajs	1.1	/* We have data we can write */
191			gchar *nextline;
192			gint nextlinesize;
193			gint nextlinewritesize;
194			GIOStatus s;
195
196			/* Get the next line, and write it down the stream */
197			s = g_io_channel_read_line(sinfile, &nextline, &nextlinesize, NULL, NULL);
198			if (nextlinesize > 0){
199			g_io_channel_write_chars(sin, nextline, nextlinesize, &nextlinewritesize, NULL);
200			}
201			if (s == G_IO_STATUS_EOF){
202			g_io_channel_shutdown(sin, TRUE, NULL);
203	pajs	1.2	sin = NULL;
204	pajs	1.1	fdssize=2;
205			}
206
207			}
208			/* Even if we did get a hangup - lets make sure there is no more data to read first by looping again */
209			if (readdata) continue;
210
211	pajs	1.3	if(((fds[0].revents & POLLHUP) != 0) && ((fds[1].revents & POLLHUP) != 0)) break;
212	pajs	1.1	}
213	pajs	1.3
214	pajs	1.4	while((waitpid(proc->pid, &(proc->stat_loc), 0)) != proc->pid);
215
216	pajs	1.3	g_timer_stop(proc->timer);
217	pajs	1.1
218	pajs	1.4	/* If process exited cleanly */
219			if (WIFEXITED(proc->stat_loc)){
220			/* Get the exit code */
221			if (verbose) g_fprintf(stderr, "Job '%s' exited with code %d. Exec time: %.2f\n", proc->jobname, WEXITSTATUS(proc->stat_loc), g_timer_elapsed(proc->timer, 0));
222			}else{
223			/* Otherwise - find out what it died with */
224			/* TODO - this doesn't work quite right.. Mainly because its looking at the shell process, so the
225			* child of the /bin/sh which does get a signal, this isn't passed up. Although, it handly tells
226			* us if the /bin/sh gets a SEGV etc ;)
227			*/
228			g_fprintf(stderr, "Job %s exited with signal %d. Exec time: %.2f\n", proc->jobname, (WTERMSIG(proc->stat_loc)), g_timer_elapsed(proc->timer, 0));
229			}
230
231
232	pajs	1.1	g_io_channel_shutdown(sout[0], TRUE, NULL);
233			g_io_channel_shutdown(sout[1], TRUE, NULL);
234
235			if((infile != NULL) && (sin != NULL)){
236			g_io_channel_shutdown(sin, TRUE, NULL);
237			}
238			if (outdir != NULL){
239			g_io_channel_shutdown(soutfile[0], TRUE, NULL);
240			g_io_channel_shutdown(soutfile[1], TRUE, NULL);
241			}
242
243			g_spawn_close_pid(proc->pid);
244
245
246			}
247
248			/* Takes a string str, a search string, find, and string to
249			* replace all occurs of find with, replace. Returns a new
250			* leaving original intact.
251			*/
252			gchar strrep(gchar str, gchar find, gchar replace){
253			gchar ptr, oldptr;
254			GString *newstr = g_string_new("");
255			gssize len = strlen(str);
256			gint findlen = strlen(find);
257
258			ptr = g_strstr_len(str, len, find);
259			oldptr=str;
260			while(ptr != NULL){
261			/* Copy in data up to this point */
262			g_string_append_len (newstr, oldptr, (ptr - oldptr));
263			/* Put in the replacement string */
264			g_string_append(newstr, replace);
265
266			oldptr = ptr + findlen;
267			/* BUG - len will now be wrong. But, i only wanted a strstr anyway :) */
268			ptr = g_strstr_len(oldptr, len, find);
269			}
270
271			/* Copy remains */
272			g_string_append_len (newstr, oldptr, (ptr - oldptr));
273
274			ptr = g_string_free(newstr, FALSE);
275
276			return ptr;
277			}
278
279
280			/* Takes a cmd before substitution, takes the characters to be substituted
281			* and a line for doign the substitution with. Fills in jobname
282			*/
283			gchar genexeccmd(gchar cmd, gchar fmt, gchar line, gchar **jobname){
284			gchar newexec, ptr;
285			int x;
286			gchar *linesep = " ";
287			gchar *fmtsep = " ";
288
289			gchar **line_array;
290			gchar **fmt_array;
291
292			if ( fmt == NULL ){
293			/* No format given - we'll just append the options to the end of the command */
294			if(jobname != NULL) *jobname = g_strdup(line);
295			return g_strdup_printf("%s %s", cmd, line);
296			}
297
298			line_array = g_strsplit(line, linesep, 0);
299			fmt_array = g_strsplit(fmt, fmtsep, 0);
300
301			if(jobparsename != NULL){
302			if(jobname != NULL){
303			for(x=0; fmt_array[x] != NULL; x++){
304			if (line_array[x] == NULL) break;
305			if((strcmp(fmt_array[x], jobparsename) == 0)){
306			*jobname = g_strdup(line_array[x]);
307			break;
308			}
309			}
310			}
311			}else{
312			/* Not told us what they want.. We'll just use the first one */
313			*jobname = g_strdup(line_array[0]);
314			}
315
316			newexec = g_strdup(cmd);
317			for(x=0; line_array[x] != NULL; x++){
318			if (fmt_array[x] == NULL) break;
319			ptr = newexec;
320			newexec = strrep(newexec, fmt_array[x], line_array[x]);
321			free(ptr);
322			}
323
324
325			return newexec;
326			}
327
328			int main(int argc, char **argv){
329
330			GThreadPool *procpool;
331			GError pp_err = NULL, err = NULL;
332			gint x;
333
334			GOptionContext *optcontext;
335
336			optcontext = g_option_context_new(" - parallel job executer");
337			g_option_context_add_main_entries(optcontext, options, NULL);
338			g_option_context_parse (optcontext, &argc, &argv, &err);
339
340			if(command == NULL){
341			g_printerr("Command required, see --help for more flags\n");
342			exit(1);
343			}
344
345			if(verbose){
346			g_printerr("Command '%s'\n", command);
347			g_printerr("Timeout '%d'\n", timeout);
348			g_printerr("Jobs '%d'\n", numthreads);
349			}
350
351
352			if(argc < 2 && arglist == NULL){
353			/* We have no arguments */
354			g_printerr("Missing arguments, see --help for details\n");
355			exit(1);
356			}
357
358			if (!g_thread_supported ()){
359			g_thread_init (NULL);
360			}else{
361			g_printerr("Threading not supported\n");
362			}
363
364			if(verbose) g_printerr("Creating a threadpool %d in size\n", numthreads);
365			procpool = g_thread_pool_new(process_child, NULL, numthreads, FALSE, &pp_err);
366
367			/* Generate the commands and push the job onto the thread pool */
368			/* If no substituion is needed */
369			if (arglist != NULL){
370			GIOChannel *f;
371			gchar *line;
372			GIOStatus status;
373
374			f = g_io_channel_new_file(arglist, "r", &err);
375			if (f == NULL){
376			g_printerr("Failed to open argfile: %s\n", err->message);
377			exit(1);
378			}
379			status = g_io_channel_read_line(f, &line, NULL, NULL, &err);
380			while(status==G_IO_STATUS_NORMAL){
381			process_t *newproc = g_new(process_t, 1);
382			newproc->err = NULL;
383
384			line = g_strstrip(line);
385
386			newproc->exec = genexeccmd(command, parseformat, line, &(newproc->jobname));
387			proclist = g_list_append(proclist, (gpointer) newproc);
388
389			if(verbose) g_printerr("Pushing command '%s' into thread pool queue\n", newproc->exec);
390			g_thread_pool_push(procpool, (gpointer) newproc, &(newproc->err));
391
392			status = g_io_channel_read_line(f, &line, NULL, NULL, &err);
393			}
394			g_io_channel_close(f);
395
396			}else{
397			/* substition is needed */
398			for(x=1; x<argc; x++){
399			process_t *newproc = g_new(process_t, 1);
400			newproc->err = NULL;
401
402			newproc->exec = genexeccmd(command, parseformat, argv[x], &(newproc->jobname));
403
404			proclist = g_list_append(proclist, (gpointer) newproc);
405
406			if(verbose) g_printerr("Pushing command '%s' into thread pool queue\n", newproc->exec);
407			g_thread_pool_push(procpool, (gpointer) newproc, &(newproc->err));
408			}
409			}
410
411
412			/* Wait for the jobs to finish */
413			/* TODO - Kill jobs that don't finish in time */
414			while(g_thread_pool_get_num_threads(procpool) > 0){
415	pajs	1.2	g_usleep(1000);
416	pajs	1.1	}
417
418			return 0;
419			}