Add Pthreads C example/test

examples/C/CMakeLists.txt

@@ -6,7 +6,7 @@ configure_file( include.ctest.sh.in  include.ctest.sh  @ONLY )
 execute_process( COMMAND ${CMAKE_COMMAND} -E copy_if_different ${CMAKE_CURRENT_SOURCE_DIR}/include.sh ${CMAKE_CURRENT_BINARY_DIR} )
 
 # Build the executables used by test scripts
-################################################
+########################################################################
 list( APPEND test_bins
       grib_nearest
       grib_set_bitmap
@@ -57,7 +57,7 @@ foreach( tool ${test_bins} )
 endforeach()
 
 # Now add each test (shell scripts)
-#################################################
+########################################################################
 list( APPEND tests
    grib_iterator
    grib_get_keys
@@ -92,19 +92,34 @@ list( APPEND tests
 )
 foreach( test ${tests} )
     ecbuild_add_test( TARGET eccodes_c_${test}
-                  TYPE       SCRIPT
-                  COMMAND    ${CMAKE_CURRENT_SOURCE_DIR}/${test}.sh
-                  TEST_DEPENDS eccodes_download_gribs eccodes_download_bufrs
+                      TYPE       SCRIPT
+                      COMMAND    ${CMAKE_CURRENT_SOURCE_DIR}/${test}.sh
+                      TEST_DEPENDS eccodes_download_gribs eccodes_download_bufrs
     )
 endforeach()
 
+########################################################################
+# Tests which are conditional
+if( ENABLE_EXTRA_TESTS AND HAVE_ECCODES_THREADS )
+    # This one only for POSIX threads
+    ecbuild_add_executable( TARGET    c_grib_pthreads
+                            NOINSTALL
+                            SOURCES   grib_pthreads.c
+                            LIBS      eccodes
+    )
+    ecbuild_add_test( TARGET eccodes_c_grib_pthreads
+                      TYPE       SCRIPT
+                      COMMAND    ${CMAKE_CURRENT_SOURCE_DIR}/grib_pthreads.sh
+    )
+endif()
 
-#############################################
+
+########################################################################
 # Tests with no script
-ecbuild_add_test( TARGET    eccodes_c_new_sample
-                  SOURCES   new_sample.c
-                  LIBS      eccodes
-                  ARGS      "out.grib"
-                  ENVIRONMENT "ECCODES_SAMPLES_PATH=${PROJECT_SOURCE_DIR}/samples" "ECCODES_DEFINITION_PATH=${PROJECT_SOURCE_DIR}/definitions"
+ecbuild_add_test(
+    TARGET    eccodes_c_new_sample
+    SOURCES   new_sample.c
+    LIBS      eccodes
+    ARGS      "out.grib"
+    ENVIRONMENT "ECCODES_SAMPLES_PATH=${PROJECT_SOURCE_DIR}/samples" "ECCODES_DEFINITION_PATH=${PROJECT_SOURCE_DIR}/definitions"
 )
-

examples/C/grib_pthreads.c

@@ -0,0 +1,72 @@
+/*
+ * Copyright 2005-2016 ECMWF.
+ *
+ * This software is licensed under the terms of the Apache Licence Version 2.0
+ * which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
+ *
+ * In applying this licence, ECMWF does not waive the privileges and immunities granted to it by
+ * virtue of its status as an intergovernmental organisation nor does it submit to any jurisdiction.
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <assert.h>
+#include <pthread.h>
+
+#include "eccodes.h"
+#define NUM_THREADS 4
+
+static void* process_grib(void* threadID)
+{
+    const long tid = (long)threadID;
+    size_t str_len = 20;
+    long indicatorOfUnitOfTimeRange = 1, step = 0;
+    char mystring[100];
+    double* values = NULL;
+    size_t values_len = 0;
+    double min=0,max=0;
+    double pv[4]={1,2,3,4};
+    const size_t pvsize=4;
+
+    codes_handle* h = codes_handle_new_from_samples(0, "regular_ll_pl_grib2");
+    assert(h);
+    printf("Thread %ld running\n", tid);
+
+    CODES_CHECK(codes_set_long(h,"indicatorOfUnitOfTimeRange", indicatorOfUnitOfTimeRange),0);
+    CODES_CHECK(codes_set_string(h,"indicatorOfUnitOfTimeRange", "s", &str_len),0);
+    CODES_CHECK(codes_set_string(h,"stepUnits", "s", &str_len),0);
+    CODES_CHECK(codes_set_long(h, "endStep", 86400), 0);
+    CODES_CHECK(codes_set_long(h,"centre", 80),0);
+
+    CODES_CHECK(codes_get_long(h,"endStep", &step),0);
+    CODES_CHECK(codes_get_string(h, "indicatorOfUnitOfTimeRange", mystring, &str_len),0);
+
+    CODES_CHECK(codes_set_long(h,"PVPresent", 1),0);
+    CODES_CHECK(codes_set_double_array(h, "pv", pv, pvsize),0);
+
+    CODES_CHECK(codes_get_size(h,"values",&values_len),0);
+    values = (double*)malloc(values_len*sizeof(double));
+    CODES_CHECK(codes_get_double_array(h, "values", values, &values_len),0);
+    free(values);
+
+    CODES_CHECK(codes_get_double(h, "min", &min),0);
+    CODES_CHECK(codes_get_double(h, "max", &max),0);
+
+    codes_handle_delete(h);
+    pthread_exit(NULL);
+}
+
+int main(int argc, char** argv)
+{
+    pthread_t threads[NUM_THREADS];
+    int error = 0;
+    long i = 0;
+    for( i=0; i<NUM_THREADS; ++i) {
+        printf("Creating thread %ld\n", i);
+        error = pthread_create(&threads[i], NULL, process_grib, (void *)i);
+        if (error) {
+            return 1;
+        }
+    }
+    pthread_exit(NULL);
+    return 0;
+}

examples/C/grib_pthreads.sh

@@ -0,0 +1,14 @@
+#!/bin/sh
+# Copyright 2005-2016 ECMWF.
+#
+# This software is licensed under the terms of the Apache Licence Version 2.0
+# which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
+#
+# In applying this licence, ECMWF does not waive the privileges and immunities granted to it by
+# virtue of its status as an intergovernmental organisation nor does it submit to any jurisdiction.
+
+. ./include.sh
+
+for i in `seq 0 100`; do
+   ${examples_dir}c_grib_pthreads
+done