summaryrefslogtreecommitdiffstats
path: root/example/bin.c
diff options
context:
space:
mode:
Diffstat (limited to 'example/bin.c')
-rw-r--r--[-rwxr-xr-x]example/bin.c44
1 files changed, 32 insertions, 12 deletions
diff --git a/example/bin.c b/example/bin.c
index 40a7f77..7be43c1 100755..100644
--- a/example/bin.c
+++ b/example/bin.c
@@ -1,47 +1,67 @@
+// bin.c - Example usage of bin.h flat file block storage
+
+#include <assert.h>
+#include <math.h>
#include <stdint.h>
#include <stdio.h>
+#include <stdlib.h>
typedef int32_t bin_key_t;
+#define BIN_IMPLEMENTATION
+#include "../include/bin.h"
+
#define TEST_LENGTH 10
#define TEST_START -2
-#define TEST_STEP 0.5;
struct sample_t {
bin_key_t time;
double data;
};
-#define BIN_IMPLEMENTATION
-#include "../include/bin.h"
-
-int main() {
+int main(void) {
char const *path = "./test.bin";
FILE *bin = bin_init(path, sizeof(struct sample_t));
+ if (!bin) {
+ fprintf(stderr, "Failed to initialize binary file\n");
+ return 1;
+ }
bin_key_t half = (bin_key_t)((TEST_START + TEST_LENGTH) / 2.0);
// Insert half of the values using bin_insert()
for (bin_key_t i = half - 1; i >= TEST_START; i--) {
- bin_insert(bin, 0, &(struct sample_t){.time = i, .data = 2.0 * i}, 1);
+ struct sample_t sample = {.time = i, .data = 2.0 * i};
+ bin_insert(bin, 0, &sample, 1);
}
// Append half of the values to the end
for (bin_key_t i = half; i < TEST_START + TEST_LENGTH; i++) {
- bin_append(bin, &(struct sample_t){.time = i, .data = 2.0 * i}, 1);
+ struct sample_t sample = {.time = i, .data = 2.0 * i};
+ bin_append(bin, &sample, 1);
}
uint64_t l = bin_length(bin);
- uint64_t bs = bin_block_size(bin);
+ (void)bin_block_size(bin);
- struct sample_t x[l];
+ assert(l < 1000000);
+ struct sample_t *x = calloc(l, sizeof(struct sample_t));
+ if (!x) {
+ fprintf(stderr, "Failed to allocate memory\n");
+ bin_close(bin);
+ return 1;
+ }
bin_read(bin, 0, x, l);
// Test that all values are correct
- for (int32_t i = 0; i < TEST_LENGTH; i++) {
- bin_key_t key = TEST_START + i;
- assert(x[i].time == key && x[i].data == 2.0 * key);
+ for (uint32_t i = 0; i < TEST_LENGTH; i++) {
+ bin_key_t key = TEST_START + (int32_t)i;
+ assert(x[i].time == key);
+ assert(fabs(x[i].data - 2.0 * key) < 1e-9);
}
+ free(x);
bin_close(bin);
+ remove(path);
+ return 0;
} \ No newline at end of file