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Diffstat (limited to 'java/jboss4/files/daemonctl.c')
| -rw-r--r-- | java/jboss4/files/daemonctl.c | 563 |
1 files changed, 0 insertions, 563 deletions
diff --git a/java/jboss4/files/daemonctl.c b/java/jboss4/files/daemonctl.c deleted file mode 100644 index 383a75fcf69f..000000000000 --- a/java/jboss4/files/daemonctl.c +++ /dev/null @@ -1,563 +0,0 @@ -/* - * -*- mode: Fundamental; tab-width: 4; -*- - * ex:ts=4 - * - * Daemon control program, with Java Startup options. - * - * Original by Ernst de Haan <znerd@freebsd.org> - * www/jakarta-tomcat4/files/daemonctl.c - * - * $FreeBSD: /tmp/pcvs/ports/java/jboss4/files/Attic/daemonctl.c,v 1.1 2004-06-21 16:42:59 vanilla Exp $ - */ - -#include <assert.h> -#include <fcntl.h> -#include <signal.h> -#include <stdarg.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <syslog.h> -#include <unistd.h> -#include <sys/errno.h> -#include <sys/stat.h> -#include <sys/types.h> -#include <sys/uio.h> - -/* The maximum size of the PID file, in bytes */ -#define MAX_FILE_SIZE 32 - -/* The interval in seconds between the checks to make sure the process - died after a kill */ -#define STOP_TIME_INTERVAL 1 - -#define ERR_ILLEGAL_ARGUMENT 1 -#define ERR_PID_FILE_NOT_FOUND 2 -#define ERR_PID_FILE_TOO_LARGE 3 -#define ERR_PID_FILE_CONTAINS_ILLEGAL_CHAR 4 -#define ERR_KILL_FAILED 5 -#define ERR_ALREADY_RUNNING 6 -#define ERR_NOT_RUNNING 7 -#define ERR_CHDIR_TO_APP_HOME 8 -#define ERR_ACCESS_JAR_FILE 17 -#define ERR_STDOUT_LOGFILE_OPEN 9 -#define ERR_STDERR_LOGFILE_OPEN 10 -#define ERR_FORK_FAILED 11 -#define ERR_STAT_JAVA_HOME 12 -#define ERR_JAVA_HOME_NOT_DIR 13 -#define ERR_STAT_JAVA_CMD 14 -#define ERR_JAVA_CMD_NOT_FILE 15 -#define ERR_JAVA_CMD_NOT_EXECUTABLE 16 - -/* - Function declarations. - */ -static void printUsage (void); -static int openPIDFile (void); -static int readPID (int); -static void writePID (int file, int pid); -static void start (int optcount, char * opts []); -static void stop (void); -static void restart (int optcount, char * opts []); - -/** - * Main function. This function is called when this program is executed. - * - * @param argc - * the number of arguments plus one, so always greater than 0. - * - * @param argv - * the arguments in an array of character pointers, where the last argument - * element is followed by a NULL element. - */ -int -main ( - int argc, - char *argv []) -{ - - /* Declare variables, like all other good ANSI C programs do :) */ - int i, jopt; - char *argument, **jargs; - - /* Parse the arguments */ - if (argc < 2) - { - printUsage (); - return 0; - } - - /* XXX: Fix for setting up the environment for the java wrapper script */ - setuid (geteuid ()); - setgid (getegid ()); - - /* - Build up java-option block. - */ - jopt = 0; - for (i = 1; i < argc; i++) - { - if (*argv [i] == '-') - jopt++; - } - if (jopt == 0) - jargs = NULL; - else - { - int j = 0; - jargs = malloc (sizeof (char *) * jopt); - for (i = 0; i < argc; i++) - { - if (*argv [i] == '-') - jargs [j++] = argv [i]; - } - } - - /* - Decide on just what to call. - */ - argument = argv [argc - 1]; - if (strcmp ("start", argument) == 0) - { - start (jopt, jargs); - - } else if (strcmp ("stop", argument) == 0) - { - stop (); - } else if (strcmp ("restart", argument) == 0) - { - restart (jopt, jargs); - - } else { - fprintf (stderr, "%%CONTROL_SCRIPT_NAME%%: Illegal argument \"%s\".\n", argument); - printUsage (); - exit (ERR_ILLEGAL_ARGUMENT); - } - - return 0; -} - - -/** - * Prints usage information to stdout. - */ -static void -printUsage (void) -{ - printf ("Usage: %%CONTROL_SCRIPT_NAME%% [java-options] {start|stop|restart}\n"); -} - -/** - * Attempts to open the PID file. If that file is successfully opened, then - * the file handle (an int) will be returned. - * - * @return - * the file handle. - */ -static int -openPIDFile (void) -{ - - int file; - - /* Attempt to open the PID file */ - file = open ("%%PID_FILE%%", O_RDWR); - if (file < 0) { - printf (" [ FAILED ]\n"); - fprintf (stderr, "%%CONTROL_SCRIPT_NAME%%: Unable to open %%PID_FILE%% for reading and writing: "); - perror (NULL); - exit (ERR_PID_FILE_NOT_FOUND); - } - - return file; -} - - -/** - * Reads a PID from the specified file. The file is identified by a file - * handle. - * - * @param file - * the file handle. - * - * @return - * the PID, or -1 if the file was empty. - */ -static int -readPID ( - int file) -{ - - char *buffer; - int hadNewline = 0; - unsigned int count; - unsigned int i; - int pid; - - /* Read the PID file contents */ - buffer = (char *) malloc ((MAX_FILE_SIZE + 1) * sizeof (char)); - count = read (file, buffer, MAX_FILE_SIZE + 1); - if (count > MAX_FILE_SIZE) { - printf (" [ FAILED ]\n"); - fprintf (stderr, "%%CONTROL_SCRIPT_NAME%%: The file %%PID_FILE%% contains more than %d bytes.\n", MAX_FILE_SIZE); - exit (ERR_PID_FILE_TOO_LARGE); - } - - /* Convert the bytes to a number */ - pid = 0; - for (i=0; i<count; i++) { - char c = buffer[i]; - if (c >= '0' && c <= '9') { - char digit = c - '0'; - pid *= 10; - pid += digit; - } else if (i == (count - 1) && c == '\n') { - /* XXX: Ignore a newline at the end of the file */ - hadNewline = 1; - } else { - printf (" [ FAILED ]\n"); - fprintf (stderr, "%%CONTROL_SCRIPT_NAME%%: The file %%PID_FILE%% contains an illegal character (%d) at position %d.\n", c, i); - exit (ERR_PID_FILE_CONTAINS_ILLEGAL_CHAR); - } - } - printf (" [ DONE ]\n"); - - if (count == 0 || (count == 1 && hadNewline == 1)) { - return -1; - } - - return pid; -} - - -/** - * Writes a process ID to the specified file. The file is identified by a file - * handle. - * - * @param file - * the file handle, always greater than 0. - * - * @param pid - * the PID to store, always greater than 0. - */ -static void -writePID ( - int file, - int pid) -{ - - char *buffer; - int nbytes; - - /* Check preconditions */ - assert (file > 0); - assert (pid > 0); - - printf (">> Writing PID file..."); - - lseek (file, (off_t) 0, SEEK_SET); - ftruncate (file, (off_t) 0); - nbytes = asprintf (&buffer, "%d\n", pid); - write (file, buffer, nbytes); - printf (" [ DONE ]\n"); -} - - -/** - * Checks if the specified process is running. - * - * @param pid - * the process id, greater than 0. - * - * @return - * 0 if the specified process is not running, a different value otherwise. - */ -static int -existsProcess ( - int pid) -{ - - int result; - - /* Check preconditions */ - assert (pid > 0); - - /* See if the process exists */ - result = kill (pid, 0); - - /* If the result is 0, then the process exists */ - if (result == 0) { - return 1; - } else { - return 0; - } -} - - -/** - * Kills the process identified by the specified ID. - * - * @param pid - * the process id, greater than 0. - */ -static void -killProcess ( - int pid) -{ - - int result; - unsigned int waited; - unsigned int forced; - unsigned int interval = STOP_TIME_INTERVAL; - unsigned int timeout = %%STOP_TIMEOUT%%; - - /* Check preconditions */ - assert (pid > 0); - - printf (">> Terminating process %d...", pid); - result = kill (pid, SIGTERM); - if (result < 0) { - printf (" [ FAILED ]\n"); - fprintf (stderr, "%%CONTROL_SCRIPT_NAME%%: Unable to kill process %d: ", pid); - perror (NULL); - exit (ERR_KILL_FAILED); - } - - /* Wait until the process is actually killed */ - result = existsProcess (pid); - for (waited=0; result == 1 && waited < timeout; waited += interval) - { - printf ("."); - fflush (NULL); - sleep (interval); - result = existsProcess (pid); - } - - /* If the process still exists, then have no mercy and kill it */ - forced = 0; - if (result == 1) { - - /* Force the process to die */ - result = kill (pid, SIGKILL); - if (result == 0) { - forced = 1; - printf (" [ DONE ]\n"); - fprintf (stderr, "%%CONTROL_SCRIPT_NAME%%: Process %d did not terminate within %%STOP_TIMEOUT%% sec. Killed.\n", pid); - } else if (result != ESRCH) { - printf (" [ FAILED ]\n"); - fprintf (stderr, "%%CONTROL_SCRIPT_NAME%%: Unable to kill process %d: ", pid); - perror (NULL); - exit (ERR_KILL_FAILED); - } - } - - if (forced == 0) { - printf (" [ DONE ]\n"); - } -} - -/** - * Starts the daemon. - */ -static void -start ( - int optcount, - char * opts []) -{ - int file; - int pid; - int result; - int stdoutLogFile; - int stderrLogFile; - struct stat sb; - - /* Open and read the PID file */ - printf (">> Reading PID file (%%PID_FILE%%)..."); - file = openPIDFile (); - pid = readPID (file); - - printf (">> Starting %%APP_TITLE%% %%PORTVERSION%%..."); - if (pid != -1) { - - /* Check if the process actually exists */ - result = existsProcess (pid); - if (result == 1) { - printf (" [ FAILED ]\n"); - fprintf (stderr, "%%CONTROL_SCRIPT_NAME%%: %%APP_TITLE%% %%PORTVERSION%% is already running, PID is %d.\n", pid); - exit (ERR_ALREADY_RUNNING); - } - } - - /* Check if the JDK home directory is actually a directory */ - result = stat ("%%JAVA_HOME%%", &sb); - if (result != 0) { - printf (" [ FAILED ]\n"); - fprintf (stderr, "%%CONTROL_SCRIPT_NAME%%: Unable to stat %%JAVA_HOME%%: "); - perror (NULL); - exit (ERR_STAT_JAVA_HOME); - } - if (!S_ISDIR (sb.st_mode)) { - printf (" [ FAILED ]\n"); - fprintf (stderr, "%%CONTROL_SCRIPT_NAME%%: Java home directory %%JAVA_HOME%% is not a directory.\n"); - exit (ERR_JAVA_HOME_NOT_DIR); - } - - /* Check if the Java command is actually an executable regular file */ - result = stat ("%%JAVA_HOME%%/%%JAVA_CMD%%", &sb); - if (result != 0) { - printf (" [ FAILED ]\n"); - fprintf (stderr, "%%CONTROL_SCRIPT_NAME%%: Unable to stat %%JAVA_HOME%%/%%JAVA_CMD%%: "); - perror (NULL); - exit (ERR_STAT_JAVA_CMD); - } - if (!S_ISREG (sb.st_mode)) { - printf (" [ FAILED ]\n"); - fprintf (stderr, "%%CONTROL_SCRIPT_NAME%%: Java command %%JAVA_HOME%%/%%JAVA_CMD%% is not a regular file.\n"); - exit (ERR_JAVA_CMD_NOT_FILE); - } - result = access ("%%JAVA_HOME%%/%%JAVA_CMD%%", X_OK); - if (result != 0) { - printf (" [ FAILED ]\n"); - fprintf (stderr, "%%CONTROL_SCRIPT_NAME%%: Java command %%JAVA_HOME%%/%%JAVA_CMD%% is not executable: "); - perror (NULL); - exit (ERR_JAVA_CMD_NOT_EXECUTABLE); - } - - /* Change directory */ - result = chdir ("%%APP_HOME%%"); - if (result < 0) { - printf (" [ FAILED ]\n"); - fprintf (stderr, "%%CONTROL_SCRIPT_NAME%%: Unable to access directory %%APP_HOME%%: "); - perror (NULL); - exit (ERR_CHDIR_TO_APP_HOME); - } - - /* See if the JAR file exists */ - result = access ("%%APP_HOME%%/%%JAR_FILE%%", R_OK); - if (result < 0) { - printf (" [ FAILED ]\n"); - fprintf (stderr, "%%CONTROL_SCRIPT_NAME%%: Unable to access JAR file %%APP_HOME%%/%%JAR_FILE%%: "); - perror (NULL); - exit (ERR_ACCESS_JAR_FILE); - } - - /* Open the stdout log file */ - stdoutLogFile = open ("%%STDOUT_LOG%%", O_WRONLY); - if (stdoutLogFile < 0) { - printf (" [ FAILED ]\n"); - fprintf (stderr, "%%CONTROL_SCRIPT_NAME%%: Unable to open %%STDOUT_LOG%% for writing: "); - perror (NULL); - exit (ERR_STDOUT_LOGFILE_OPEN); - } - lseek (stdoutLogFile, (off_t) 0, SEEK_END); - - /* Open the stderr log file */ - stderrLogFile = open ("%%STDERR_LOG%%", O_WRONLY); - if (stderrLogFile < 0) { - printf (" [ FAILED ]\n"); - fprintf (stderr, "%%CONTROL_SCRIPT_NAME%%: Unable to open %%STDERR_LOG%% for writing: "); - perror (NULL); - exit (ERR_STDERR_LOGFILE_OPEN); - } - lseek (stderrLogFile, (off_t) 0, SEEK_END); - - /* Split this process in two */ - pid = fork (); - if (pid == -1) { - printf (" [ FAILED ]\n"); - fprintf (stderr, "%%CONTROL_SCRIPT_NAME%%: Unable to fork: "); - perror (NULL); - exit (ERR_FORK_FAILED); - } - - if (pid == 0) - { - int i, argc; - char **argv; - - /* Redirect stdout to log file */ - dup2 (stdoutLogFile, STDOUT_FILENO); - - /* Redirect stderr to log file */ - dup2 (stderrLogFile, STDERR_FILENO); - - /* TODO: Support redirection of both stdout and stderr to the same - file using pipe (2) */ - - /* - Build the argument vector, with the java-options if any. - */ - argv = malloc (sizeof (char *) * (optcount + 5)); - argc = 0; - argv [argc++] = "%%JAVA_HOME%%/%%JAVA_CMD%%"; - for (i = 0; i < optcount; i++) - argv [argc++] = opts [i]; - argv [argc++] = "-cp"; - argv [argc++] = "%%JAVA_CP%%"; - argv [argc++] = "%%JAVA_MAIN%%"; - argv [argc++] = NULL; - - /* Execute the command */ - execv (argv [0], argv); - - perror (NULL); - } else - { - printf (" [ DONE ]\n"); - writePID (file, pid); - } -} - -/** - * Stops the daemon. - */ -static void -stop (void) -{ - - int file; - int pid; - - /* Open and read the PID file */ - printf (">> Reading PID file (%%PID_FILE%%)..."); - file = openPIDFile (); - pid = readPID (file); - - printf (">> Checking if %%APP_TITLE%% %%PORTVERSION%% is running..."); - - /* If there is a PID, see if the process still exists */ - if (pid != -1) { - int result = kill (pid, 0); - if (result != 0 && errno == ESRCH) { - ftruncate (file, (off_t) 0); - pid = -1; - } - } - - /* If there is no running process, produce an error */ - if (pid == -1) { - printf (" [ FAILED ]\n"); - fprintf (stderr, "%%CONTROL_SCRIPT_NAME%%: %%APP_TITLE%% %%PORTVERSION%% is currently not running.\n"); - exit (ERR_NOT_RUNNING); - } - printf (" [ DONE ]\n"); - - /* Terminate the process */ - killProcess (pid); - - /* Clear the PID file */ - ftruncate (file, (off_t) 0); -} - - -/** - * Restarts the process. If it not currently running, then it will fail. - */ -static void -restart ( - int optcount, - char * opts []) -{ - stop (); - start (optcount, opts); -} |