94 lines
2.4 KiB
C
94 lines
2.4 KiB
C
/*
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* Mr. 4th Dimention - Allen Webster
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*
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* 19.07.2017
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*
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* Cross platform library constants
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*
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*/
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// TOP
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#if !defined(FRED_SHARED_LIBRARY_CONSTANTS_H)
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#define FRED_SHARED_LIBRARY_CONSTANTS_H
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// Wrapper functions
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union Library;
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internal b32
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system_load_library_direct(Arena *scratch, Library *library, char *name);
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internal void*
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system_get_proc(Library *library, char *name);
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internal void
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system_free_library(Library *library);
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// Shared logic
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#define LIBRARY_TYPE_SIZE 32
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#define AssertLibrarySizes() Assert(sizeof(Library) == LIBRARY_TYPE_SIZE)
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typedef u32 Load_Library_Location;
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enum{
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LoadLibrary_CurrentDirectory,
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LoadLibrary_BinaryDirectory,
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};
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internal b32
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system_load_library(Arena *scratch, Library *library, char *name_cstr, Load_Library_Location location, char *full_file_out, u32 full_file_max){
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Temp_Memory temp = begin_temp(scratch);
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String_Const_char name = SCchar(name_cstr);
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String_Const_char extension = string_file_extension(name);
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if (!string_match(extension, string_litexpr( DLL ))){
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String_Const_char full_name = push_stringf(scratch, "%.*s." DLL, string_expand(name));
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name_cstr = full_name.str;
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}
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String_Const_u8 path = {};
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switch (location){
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case LoadLibrary_CurrentDirectory:
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{
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path = sysfunc.get_current_path(scratch);
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}break;
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case LoadLibrary_BinaryDirectory:
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{
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path = sysfunc.get_4ed_path(scratch);
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}break;
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//default: LOG("Invalid library location passed.\n"); break;
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}
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b32 success = false;
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if (path.size > 0){
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if (path.str[path.size - 1] != SLASH){
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path = push_u8_stringf(scratch, "%.*s%c%.*s", string_expand(path), SLASH, string_expand(name));
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}
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else{
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path = push_u8_stringf(scratch, "%.*s%.*s", string_expand(path), string_expand(name));
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}
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success = system_load_library_direct(scratch, library, (char*)path.str);
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}
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if (success && full_file_out != 0 && full_file_out > 0){
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u32 fill_size = clamp_top((u32)(path.size), (u32)(full_file_max - 1));
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block_copy(full_file_out, path.str, fill_size);
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full_file_out[fill_size] = 0;
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}
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end_temp(temp);
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return(success);
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}
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internal b32
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system_load_library(Arena *scratch, Library *library, char *name, Load_Library_Location location){
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return(system_load_library(scratch, library, name, location, 0, 0));
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}
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#endif
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// BOTTOM
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