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91 lines
1.9 KiB
C
91 lines
1.9 KiB
C
/**
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* Jingga
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*
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* @copyright Jingga
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* @license OMS License 2.0
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* @version 1.0.0
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* @link https://jingga.app
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*/
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#ifndef TOS_PLATFORM_LINUX_LIBRARY_H
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#define TOS_PLATFORM_LINUX_LIBRARY_H
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#include <stdio.h>
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#include <dlfcn.h>
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#include <string.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include "../../stdlib/Types.h"
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#include "../../utils/StringUtils.h"
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#include "UtilsLinux.h"
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#include "../Library.h"
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// @todo Rename file to Library.cpp
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inline
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bool library_load(Library* lib)
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{
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size_t path_length = strlen(lib->dir);
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char dst[PATH_MAX];
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str_concat(
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lib->dir, path_length,
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lib->dst, strlen(lib->dst),
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dst
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);
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#if DEBUG
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char src[PATH_MAX];
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size_t dst_len = strlen(dst);
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memcpy(src, dst, dst_len + 1);
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memcpy(dst + dst_len - (sizeof(".so") - 1), "_temp", sizeof("_temp") - 1);
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memcpy(dst + dst_len - (sizeof(".so") - 1) + (sizeof("_temp") - 1), ".so", sizeof(".so"));
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lib->last_load = last_modified(src);
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file_copy(src, dst);
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#endif
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// Unload any previous instance of the library if it’s already loaded
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if (lib->handle) {
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dlclose(lib->handle);
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lib->handle = NULL;
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usleep(100000); // 100 ms
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}
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// @question we might want RTLD_NOW?
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lib->handle = dlopen(dst, RTLD_LAZY);
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if (!lib->handle) {
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lib->is_valid = false;
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return lib->is_valid;
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}
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lib->is_valid = true;
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for (int32_t c = 0; c < lib->function_count; ++c) {
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void* function = dlsym(lib->handle, lib->function_names[c]);
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if (function) {
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lib->functions[c] = function;
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} else {
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lib->is_valid = false;
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}
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}
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return lib->is_valid;
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}
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inline
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void library_unload(Library* lib)
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{
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if (lib->handle) {
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dlclose(lib->handle);
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lib->handle = NULL;
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}
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for (int32_t c = 0; c < lib->function_count; ++c) {
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lib->functions[c] = NULL;
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}
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}
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#endif
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