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test.c->dmevent.c
This commit is contained in:
Alasdair Kergon
parent
e4fe47bc19
commit
42712811e3
@ -16,18 +16,18 @@ srcdir = @srcdir@
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top_srcdir = @top_srcdir@
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VPATH = @srcdir@
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TARGETS = test dmeventd
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TARGETS = dmevent dmeventd
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INSTALL_TYPE = install_dynamic
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SOURCES = test.c dmeventd.c
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CLEAN_TARGETS = test
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SOURCES = dmevent.c dmeventd.c
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CLEAN_TARGETS = dmevent
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LDFLAGS += -ldl -ldevmapper -lpthread
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include ../make.tmpl
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test: $(OBJECTS) $(interfacedir)/libdevmapper.$(LIB_SUFFIX) $(top_srcdir)/lib/event/libdmevent.$(LIB_SUFFIX)
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$(CC) -o $@ test.o $(LDFLAGS) \
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dmevent: $(OBJECTS) $(interfacedir)/libdevmapper.$(LIB_SUFFIX) $(top_srcdir)/lib/event/libdmevent.$(LIB_SUFFIX)
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$(CC) -o $@ dmevent.o $(LDFLAGS) \
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-L$(interfacedir) -L$(DESTDIR)/lib -L$(top_srcdir)/lib/event -ldevmapper -ldmevent $(LIBS)
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dmeventd: $(OBJECTS) $(interfacedir)/libdevmapper.$(LIB_SUFFIX) $(top_srcdir)/lib/event/libdmevent.$(LIB_SUFFIX)
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137
daemons/dmeventd/dmevent.c
Normal file
137
daemons/dmeventd/dmevent.c
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@ -0,0 +1,137 @@
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/*
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* Copyright (C) 2005 Red Hat, Inc. All rights reserved.
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*
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* This file is part of the device-mapper userspace tools.
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*
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* This copyrighted material is made available to anyone wishing to use,
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* modify, copy, or redistribute it subject to the terms and conditions
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* of the GNU Lesser General Public License v.2.1.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "libdevmapper.h"
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#include "libdm-event.h"
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#include <errno.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/file.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <unistd.h>
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static enum event_type events = ALL_ERRORS; /* All until we can distinguish. */
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static char *default_dso_name = "noop"; /* default DSO is noop */
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static int default_reg = 1; /* default action is register */
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/* Display help. */
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static void print_usage(char *name)
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{
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char *cmd = strrchr(name, '/');
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cmd = cmd ? cmd + 1 : name;
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printf("Usage::\n"
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"%s [options] <device>\n"
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"\n"
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"Options:\n"
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" -d <dso> Specify the DSO to use.\n"
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" -h Print this usage.\n"
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" -l List registered devices.\n"
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" -r Register for event (default).\n"
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" -u Unregister for event.\n"
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"\n", cmd);
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}
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/* Parse command line arguments. */
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static int parse_argv(int argc, char **argv,
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char **dso_name, char **device, int *reg, int *list)
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{
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int c;
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const char *options = "d:hlru";
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while ((c = getopt(argc, argv, options)) != -1) {
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switch (c) {
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case 'd':
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*dso_name = optarg;
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break;
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case 'h':
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print_usage(argv[0]);
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exit(EXIT_SUCCESS);
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case 'l':
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*list = 1;
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break;
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case 'r':
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*reg = 1;
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break;
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case 'u':
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*reg = 0;
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break;
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default:
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fprintf(stderr, "Unknown option '%c'.\n"
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"Try '-h' for help.\n", c);
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return 0;
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}
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}
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if (!*list) {
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if (optind >= argc) {
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fprintf(stderr, "You need to specify a device.\n");
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return 0;
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}
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*device = argv[optind];
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}
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return 1;
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}
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int main(int argc, char **argv)
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{
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int list = 0, ret, reg = default_reg;
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char *device, *dso_name = default_dso_name;
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if (!parse_argv(argc, argv, &dso_name, &device, ®, &list))
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exit(EXIT_FAILURE);
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if (list) {
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do {
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ret = dm_get_next_registered_device(&dso_name, &device, &events);
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if (!ret) {
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printf("%s %s 0x%x\n", dso_name, device, events);
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free(dso_name);
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free(device);
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}
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} while (ret);
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exit(EXIT_SUCCESS);
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}
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if ((ret = reg ? dm_register_for_event(dso_name, device, events) :
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dm_unregister_for_event(dso_name, device, events))) {
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fprintf(stderr, "Failed to %sregister %s: %s\n",
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reg ? "": "un", device, strerror(-ret));
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exit(EXIT_FAILURE);
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}
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printf("%s %sregistered successfully.\n", device, reg ? "" : "un");
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exit(EXIT_SUCCESS);
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}
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/*
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* Overrides for Emacs so that we follow Linus's tabbing style.
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* Emacs will notice this stuff at the end of the file and automatically
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* adjust the settings for this buffer only. This must remain at the end
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* of the file.
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* ---------------------------------------------------------------------------
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* Local variables:
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* c-file-style: "linux"
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* End:
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*/
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@ -1,75 +0,0 @@
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/*
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* Copyright (C) 2005 Red Hat, Inc. All rights reserved.
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*
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* This file is part of the device-mapper userspace tools.
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*
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* This copyrighted material is made available to anyone wishing to use,
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* modify, copy, or redistribute it subject to the terms and conditions
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* of the GNU Lesser General Public License v.2.1.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "libdevmapper.h"
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#include "libdm-event.h"
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#include <errno.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/file.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <unistd.h>
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static char *dso_name = "kickme";
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static char *device = "/dev/mapper/test";
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static char *device1 = "/dev/mapper/test1";
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enum event_type events = ALL_ERRORS;
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static void log_return(int ret, char *what, char *device)
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{
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printf("%s returned \"%s\"\n", what, strerror(-ret));
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if (ret < 0)
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printf("%s %s FAILED :-(((\n", what, device);
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else
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printf("%s %s succeded :-)\n", what, device);
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}
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int main(int argc, char **argv)
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{
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int reg = 0;
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if (argc > 1 && *argv[1] == 'r')
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reg = 1;
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if (reg) {
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log_return(dm_register_for_event(dso_name, device, events),
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"register", device);
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log_return(dm_register_for_event(dso_name, device1, events),
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"register", device1);
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} else {
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log_return(dm_unregister_for_event(dso_name, device, events),
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"unregister", device);
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log_return(dm_unregister_for_event(dso_name, device1, events),
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"unregister", device1);
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}
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return 0;
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}
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/*
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* Overrides for Emacs so that we follow Linus's tabbing style.
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* Emacs will notice this stuff at the end of the file and automatically
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* adjust the settings for this buffer only. This must remain at the end
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* of the file.
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* ---------------------------------------------------------------------------
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* Local variables:
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* c-file-style: "linux"
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* End:
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*/
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