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/* A simple standalone XML-RPC server program based on Abyss.
You can terminate this server in controlled fashion with a SIGTERM
signal.
xmlrpc_sample_add_server.c is a server that does the same thing with
simpler code, but it is not interruptible with SIGTERM.
*/
#define _XOPEN_SOURCE 600
#define WIN32_LEAN_AND_MEAN /* required by xmlrpc-c/server_abyss.h */
#include <stdlib.h>
#include <stdio.h>
#include <signal.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <xmlrpc-c/base.h>
#include <xmlrpc-c/abyss.h>
#include <xmlrpc-c/server.h>
#include <xmlrpc-c/server_abyss.h>
#include "config.h" /* information about this build environment */
static void
dieIfFailed(const char * const description,
xmlrpc_env const env) {
if (env.fault_occurred) {
fprintf(stderr, "%s failed. %s\n", description, env.fault_string);
exit(1);
}
}
static xmlrpc_server_abyss_t * serverToTerminateP;
static void
sigtermHandler(int const signalClass) {
xmlrpc_env env;
xmlrpc_env_init(&env);
xmlrpc_server_abyss_terminate(&env, serverToTerminateP);
dieIfFailed("xmlrpc_server_abyss_terminate", env);
xmlrpc_env_clean(&env);
}
static void
setupSigtermHandler(xmlrpc_server_abyss_t * const serverP) {
struct sigaction mysigaction;
serverToTerminateP = serverP;
sigemptyset(&mysigaction.sa_mask);
mysigaction.sa_flags = 0;
mysigaction.sa_handler = sigtermHandler;
sigaction(SIGTERM, &mysigaction, NULL);
}
static void
restoreSigtermHandler(void){
struct sigaction mysigaction;
sigemptyset(&mysigaction.sa_mask);
mysigaction.sa_flags = 0;
mysigaction.sa_handler = SIG_DFL;
sigaction(SIGTERM, &mysigaction, NULL);
}
static xmlrpc_value *
sample_add(xmlrpc_env * const envP,
xmlrpc_value * const paramArrayP,
void * const serverInfo,
void * const channelInfo) {
xmlrpc_int x, y, z;
/* Parse our argument array. */
xmlrpc_decompose_value(envP, paramArrayP, "(ii)", &x, &y);
if (envP->fault_occurred)
return NULL;
/* Add our two numbers. */
z = x + y;
/* Return our result. */
return xmlrpc_build_value(envP, "i", z);
}
int
main(int const argc,
const char ** const argv) {
struct xmlrpc_method_info3 const methodInfo = {
.methodName = "sample.add",
.methodFunction = &sample_add,
.serverInfo = NULL
};
xmlrpc_server_abyss_parms serverparm;
xmlrpc_server_abyss_t * serverP;
xmlrpc_registry * registryP;
xmlrpc_env env;
xmlrpc_server_abyss_sig * oldHandlersP;
if (argc-1 != 1) {
fprintf(stderr, "You must specify 1 argument: The TCP port number "
"on which to listen for XML-RPC calls. "
"You specified %d.\n", argc-1);
exit(1);
}
xmlrpc_env_init(&env);
xmlrpc_server_abyss_global_init(&env);
dieIfFailed("xmlrpc_server_abyss_global_init", env);
registryP = xmlrpc_registry_new(&env);
dieIfFailed("xmlrpc_registry_new", env);
xmlrpc_registry_add_method3(&env, registryP, &methodInfo);
dieIfFailed("xmlrpc_registry_add_method2", env);
serverparm.config_file_name = NULL;
serverparm.registryP = registryP;
serverparm.port_number = atoi(argv[1]);
xmlrpc_server_abyss_create(&env, &serverparm, XMLRPC_APSIZE(port_number),
&serverP);
dieIfFailed("xmlrpc_server_abyss_create", env);
xmlrpc_server_abyss_setup_sig(&env, serverP, &oldHandlersP);
dieIfFailed("xmlrpc_server_abyss_setup_sig", env);
setupSigtermHandler(serverP);
printf("Running XML-RPC server...\n");
xmlrpc_server_abyss_run_server(&env, serverP);
dieIfFailed("xmlrpc_server_abyss_run_server", env);
printf("Server has terminated\n");
restoreSigtermHandler();
xmlrpc_server_abyss_restore_sig(oldHandlersP);
xmlrpc_server_abyss_destroy(serverP);
xmlrpc_registry_free(registryP);
xmlrpc_server_abyss_global_term();
xmlrpc_env_clean(&env);
return 0;
}
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