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Sample code for NCS_FindResource()

Sample Code

#ifdef __MWERKS__
#pragma ANSI_strict off
#pragma warn_padding off
#endif
#include <ncssdk.h>
#ifdef __MWERKS__
#pragma warn_padding reset
#pragma ANSI_strict reset
#endif

#include <nunicode.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#define CASE_RET(id) case id: return #id;

static char const* strNCSError( NCS_RETURN error_code) {
  switch ( error_code) {
    CASE_RET( NCS_SUCCESS)
    CASE_RET( NCS_ERROR_INVALID_HANDLE)
    CASE_RET( NCS_ERROR_INVALID_PARAMETER)
    CASE_RET( NCS_FAILURE)
    CASE_RET( NCS_BUSY)
    CASE_RET( NCS_ERROR_TOO_MANY_HANDLES)
    CASE_RET( NCS_UNKNOWN)
    CASE_RET( NCS_BAD_PARAMETER)
    CASE_RET( NCS_ALLOC_ERROR)
    CASE_RET( NCS_NODE_NOT_FOUND)
    CASE_RET( NCS_IP_DUPLICATE)
    CASE_RET( NCS_RESOURCE_ONLINE)
    CASE_RET( NCS_RESOURCE_NOT_FOUND)
    CASE_RET( NCS_RESOURCE_FOUND)
    CASE_RET( NCS_ATTACH_CREATE)
    CASE_RET( NCS_ATTACH_EXISTS)
    CASE_RET( NCS_NOT_CLUSTER_MEMBER)
    CASE_RET( NCS_NO_RESOURCES)
    CASE_RET( NCS_TRYLOCK_HELD)
    CASE_RET( NCS_JOIN_LEAVE_PENDING)
    CASE_RET( NCS_JOIN_LEAVE_ALREADY_IN)
    CASE_RET( NCS_JOIN_LEAVE_NOT_IN)
    CASE_RET( NCS_JOIN_LEAVE_NO_GIPC)
    CASE_RET( NCS_JOIN_LEAVE_GIPC_ERROR)
    CASE_RET( NCS_JOIN_LEAVE_SBD_ERROR)
    CASE_RET( NCS_JOIN_LEAVE_TIMED_OUT)
    CASE_RET( NCS_JOIN_LEAVE_EVENT_EXIT)
    CASE_RET( NCS_NOT_SUPPORTED)
  }
  return "Unknown NCS code";
}
static void printUniCodeStr( UINT8* str) {
  if ( str == NULL) {
    printf( "<null>");
  }
  else {
    unsigned char buffer[ 256];
    size_t actual_len = 0;
    int ccode;
    ccode = NWUSUnicodeToByte( buffer, sizeof( buffer), ( unicode*) str, &actual_len);
    if ( ccode != 0) {
      printf( "NWUSUnicodeToByte failed, ccode = %x, actual_len = %u\n", ccode, actual_len);
    }
    else printf(( char*) buffer);
  }
}
int main( int argc, char* argv[]) {
  NCS_HANDLE handle;
  NCS_RESOURCE resource;
  NCS_RETURN ccode;
  if ( argc != 2) {
    printf( "Usage: %s <unique resource string>\n", argv[ 0]);
    return EXIT_FAILURE;
  }
  NWUSStandardUnicodeInit();
  ccode = NCS_Register( NULL, NULL, NULL, NULL, NULL, &handle);
  if ( ccode != NCS_SUCCESS) {
    printf( "NCS_Register failed, ccode = %d (%s)\n", ccode, strNCSError( ccode));
    return EXIT_FAILURE;
  }
  memset( &resource, 0, sizeof( resource));
  ccode = NCS_FindResource( handle, ( UINT8*) argv[ 1], TRUE, &resource);
  if ( ccode != NCS_RESOURCE_FOUND && ccode != NCS_RESOURCE_NOT_FOUND) {
    printf( "NCS_FindResource failed, ccode = %d (%s)\n", ccode, strNCSError( ccode));
    NCS_Deregister( handle);
    return EXIT_FAILURE;
  }
  if ( ccode == NCS_RESOURCE_FOUND) {
    puts( "Resource found");
    /* No fields are filled in except the name and uniObjName */
    printf( "name = %s\n", resource.name);
    printf( "loadWait = %d\n", resource.loadWait);
    printf( "unloadWait = %d\n", resource.unloadWait);
    printf( "failOver = %d\n", resource.failOver);
    printf( "failBack = %d\n", resource.failBack);
    printf( "ignore_quorum = %d\n", resource.ignore_quorum);
    printf( "revision = %d\n", resource.revision);
    printf( "fail_order[ 0] = %d\n", resource.fail_order[ 0]);
    printf( "loadScript = %p\n", resource.loadScript);
    printf( "unloadScript = %p\n", resource.unloadScript);
    printf( "uniObjName = ");
    printUniCodeStr( resource.uniObjName);
    puts( "");
    printf( "incarnation = %d\n", resource.incarnation);
    printf( "state = %d\n", resource.state);
    printf( "alert = %d\n", resource.alert);
    printf( "location = %d\n", resource.location);
    printf( "fromTo = %d\n", resource.fromTo);
    printf( "res_fail_cnt = %d\n", resource.res_fail_cnt);
    printf( "dateAndTime = %s\n", resource.dateAndTime);
  }
  else {
    puts( "Resource not found");
  }
  ccode = NCS_Deregister( handle);
  if ( ccode != NCS_SUCCESS) {
    printf( "NCS_Deregister failed, ccode = %d (%s)\n", ccode, strNCSError( ccode));
    return EXIT_FAILURE;
  }
  return EXIT_SUCCESS;
}

--Dmitry Mityugov

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