2020-10-16 23:56:22 +02:00
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# -*- mode: org -*-
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# vim: syntax=c
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#+TITLE: Memory management
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We override the allocation functions to enable the possibility of
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optimized libraries to fine-tune the memory allocation.
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3 files are produced:
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- a header file : =qmckl_memory.h=
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- a source file : =qmckl_memory.c=
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- a test file : =test_qmckl_memory.c=
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*** Header
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#+BEGIN_SRC C :tangle qmckl_memory.h
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#ifndef QMCKL_MEMORY_H
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#define QMCKL_MEMORY_H
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#include "qmckl.h"
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#+END_SRC
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*** Source
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#+BEGIN_SRC C :tangle qmckl_memory.c
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#include <stdlib.h>
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#include "qmckl_memory.h"
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#+END_SRC
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*** Test
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#+BEGIN_SRC C :tangle test_qmckl_memory.c
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2020-10-17 01:10:54 +02:00
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#include "qmckl.h"
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#include "munit.h"
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static MunitResult test_qmckl_memory() {
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2020-10-16 23:56:22 +02:00
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#+END_SRC
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** =qmckl_malloc=
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Analogous of =malloc, but passing signed 64-bit integers as argument.=
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*** Header
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#+BEGIN_SRC C :tangle qmckl_memory.h
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void* qmckl_malloc(long long int size);
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#+END_SRC
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*** Source
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#+BEGIN_SRC C :tangle qmckl_memory.c
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void* qmckl_malloc(long long int size) {
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return malloc( (size_t) size );
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}
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#+END_SRC
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*** Test
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#+BEGIN_SRC C :tangle test_qmckl_memory.c
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int *a;
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a = (int*) qmckl_malloc(3*sizeof(int));
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a[0] = 1;
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a[1] = 2;
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a[2] = 3;
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2020-10-17 01:10:54 +02:00
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munit_assert_int(a[0], ==, 1);
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munit_assert_int(a[1], ==, 2);
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munit_assert_int(a[2], ==, 3);
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2020-10-16 23:56:22 +02:00
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#+END_SRC
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** =qmckl_free=
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*** Header
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#+BEGIN_SRC C :tangle qmckl_memory.h
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void qmckl_free(void *ptr);
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#+END_SRC
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*** Source
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#+BEGIN_SRC C :tangle qmckl_memory.c
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void qmckl_free(void *ptr) {
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free(ptr);
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}
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#+END_SRC
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*** Test
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#+BEGIN_SRC C :tangle test_qmckl_memory.c
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qmckl_free(a);
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#+END_SRC
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* End of files
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*** Header
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#+BEGIN_SRC C :tangle qmckl_memory.h
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#endif
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#+END_SRC
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*** Test
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#+BEGIN_SRC C :tangle test_qmckl_memory.c
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2020-10-17 01:10:54 +02:00
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return MUNIT_OK;
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}
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int main(int argc, char* argv[MUNIT_ARRAY_PARAM(argc + 1)]) {
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static MunitTest test_suite_tests[] =
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{
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{ (char*) "qmckl_memory", test_qmckl_memory, NULL, NULL, MUNIT_TEST_OPTION_NONE, NULL },
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{ NULL, NULL, NULL, NULL, MUNIT_TEST_OPTION_NONE, NULL }
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};
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static const MunitSuite test_suite =
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{
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(char*) "", test_suite_tests, NULL, 1, MUNIT_SUITE_OPTION_NONE
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};
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return munit_suite_main(&test_suite, (void*) "µnit", argc, argv);
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2020-10-16 23:56:22 +02:00
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}
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#+END_SRC
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