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feat(newlib): implement scandir and alphasort

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Based on https://man7.org/linux/man-pages/man3/scandir.3.html
This commit is contained in:
Ivan Grokhotkov
2023-12-21 18:38:35 +01:00
parent dfb1e0e087
commit dee5b087fa
4 changed files with 176 additions and 2 deletions
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90
components/newlib/test_apps/newlib/main/test_misc.c
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@@ -12,8 +12,11 @@
#include <errno.h>
#include <sys/param.h>
#include <stdlib.h>
#include <dirent.h>
#include "sys/dirent.h"
#include "unity.h"
#include "esp_heap_caps.h"
#include "esp_vfs.h"
TEST_CASE("misc - posix_memalign", "[newlib_misc]")
@@ -91,3 +94,90 @@ TEST_CASE("misc - realpath", "[newlib_misc]")
TEST_ASSERT_EQUAL_STRING("/abc/def", out_new);
free(out_new);
}
static int s_select_calls = 0;
typedef struct {
const char **filenames;
size_t num_files;
size_t current_index;
} scandir_test_dir_context_t;
static DIR *scandir_test_opendir(void* ctx, const char* name)
{
scandir_test_dir_context_t *dir_ctx = (scandir_test_dir_context_t *)ctx;
dir_ctx->current_index = 0;
static DIR dir = {};
return &dir;
}
static struct dirent *scandir_test_readdir(void* ctx, DIR* pdir)
{
scandir_test_dir_context_t *dir_ctx = (scandir_test_dir_context_t *)ctx;
if (dir_ctx->current_index >= dir_ctx->num_files) {
return NULL;
}
static struct dirent entry;
snprintf(entry.d_name, sizeof(entry.d_name), "%s", dir_ctx->filenames[dir_ctx->current_index]);
dir_ctx->current_index++;
return &entry;
}
static int scandir_test_closedir(void* ctx, DIR* pdir)
{
return 0;
}
static int scandir_test_select(const struct dirent *entry)
{
s_select_calls++;
return strstr(entry->d_name, "test") != NULL;
}
TEST_CASE("file - scandir", "[newlib_misc]")
{
const char *test_filenames[] = {
".",
"..",
"test_file1.txt",
"file2.txt",
"test_file3.txt",
"test_file4.txt",
"test_file5.txt",
"test_file6.txt",
"test_file7.txt",
"test_file8.txt",
"test_file9.txt",
"test_file10.txt",
};
size_t num_test_files = sizeof(test_filenames) / sizeof(test_filenames[0]);
scandir_test_dir_context_t scandir_test_dir_ctx = { .filenames = test_filenames, .num_files = num_test_files };
const esp_vfs_t scandir_test_vfs = {
.flags = ESP_VFS_FLAG_CONTEXT_PTR,
.opendir_p = scandir_test_opendir,
.readdir_p = scandir_test_readdir,
.closedir_p = scandir_test_closedir
};
TEST_ESP_OK(esp_vfs_register("/data", &scandir_test_vfs, &scandir_test_dir_ctx));
struct dirent **namelist;
s_select_calls = 0;
int n = scandir("/data", &namelist, scandir_test_select, alphasort);
TEST_ASSERT_NOT_NULL(namelist);
TEST_ASSERT_GREATER_THAN(0, n);
TEST_ASSERT_EQUAL(num_test_files, s_select_calls);
TEST_ASSERT_EQUAL(9, n);
for (int i = 0; i < n; ++i) {
TEST_ASSERT_NOT_NULL(strstr(namelist[i]->d_name, "test"));
free(namelist[i]);
}
free(namelist);
esp_vfs_unregister("/data");
}