diff options
Diffstat (limited to 'Kod/display/ClientServerApp/Client/Client.cpp')
| -rw-r--r-- | Kod/display/ClientServerApp/Client/Client.cpp | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/Kod/display/ClientServerApp/Client/Client.cpp b/Kod/display/ClientServerApp/Client/Client.cpp new file mode 100644 index 0000000..efd08fe --- /dev/null +++ b/Kod/display/ClientServerApp/Client/Client.cpp @@ -0,0 +1,151 @@ +//============================================================================
+// Name : Client.cpp
+// Author : Erik Hellström, hellstrom@isy.liu.se, 2008-12-14
+// Modified : Emil Larsson, lime@isy.liu.se, 2012-01-13
+//
+// Description : The client requests data to be sent by the server.
+//
+//============================================================================
+
+#include <stdio.h>
+#include <string>
+#include "ComConduit.h"
+
+//
+// Show the command-line usage
+//
+void Usage(char* argv[]) {
+
+ printf("\nUsage: %s <options>\n\n",argv[0]);
+ printf(" -S=<message> Send message, ex -S=\"hello world\".\n");
+ printf(" -X Shutdown server.\n");
+ printf("\n\n");
+}
+
+
+
+
+
+//
+// Module main function
+//
+int main(int argc, char* argv[]) {
+
+ // Conduit object
+ ComConduit Link;
+ // Key
+ KeyType key[KEY_LEN] = COM_KEY;
+ // Work variables
+ wchar_t data[COMSTR_LEN];
+ bool doShutdown;
+ FlagType ret;
+ int i,j;
+ char c,*ptr;
+ WaitResult wr;
+
+ // Initialize data
+ data[0] = '\0';
+ doShutdown = false;
+
+ //
+ // Parse the command-line.
+ //
+ for (i=1; i<argc; i++) {
+ ptr = argv[i];
+
+ while(*ptr == '-') // Step forward
+ ptr++;
+ c = *ptr; // Get option
+ ptr++;
+ if(*ptr == '=') // Step forward
+ ptr++;
+
+ switch(c) {
+
+ case 'S':
+ case 's':
+ // Read message
+ j = 0;
+ do {
+ // add 1 to avoid the "null" character
+// data[j] = (*ptr)+1;
+ data[j] = (*ptr);
+ ptr++;
+ j++;
+ } while(j<COMSTR_LEN && *ptr != '\0');
+ if(j >= COMSTR_LEN) {
+ fprintf(stderr,"\nToo long message.\n");
+ return EXIT_FAIL;
+ }
+ data[j] = '\0';
+ break;
+
+ case 'X':
+ case 'x':
+ // Shutdown
+ doShutdown = true;
+ break;
+ }
+ }
+
+ // Check valid args
+ if(!doShutdown && data[0] == '\0') {
+ Usage(argv);
+ return EXIT_FAIL;
+ }
+
+ //
+ // Start client
+ //
+ if(!Link.StartClient(key)) {
+ fprintf(stderr,"StartClient() failed.\n");
+ return EXIT_FAIL;
+ }
+
+ ret = EXIT_OK;
+ if(doShutdown) {
+ // Tell server to shutdown
+ if(!Link.CauseShutdown()) {
+ fprintf(stderr,"\nCauseShutdown() failed.\n");
+ ret = EXIT_FAIL;
+ }
+ }
+ else {
+ do {
+ // Check if server is ready
+ wr = Link.WaitForEvent(COM_READY,0);
+ if(wr != WAIT_OK) {
+ fprintf(stderr,"Server is not ready.\n");
+ ret = EXIT_FAIL;
+ break;
+ }
+
+ // Set data in shm
+ if(!Link.SetData(data)) {
+ fprintf(stderr,"SetData() failed.\n");
+ ret = EXIT_FAIL;
+ break;
+ }
+
+ // Request that the server send the data
+ if(!Link.CauseEvent(COM_REQUEST)) {
+ fprintf(stderr,"CauseEvent() failed.\n");
+ ret = EXIT_FAIL;
+ break;
+ }
+ } while(false);
+ }
+
+ //
+ // Shutdown
+ //
+ if(!Link.Shutdown()) {
+ fprintf(stderr,"Shutdown() failed.\n");
+ ret = EXIT_FAIL;
+ }
+ if(ret == EXIT_OK)
+ fprintf(stdout, "\nClean exit.\n");
+
+ return ret;
+}
+
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