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dynlib: unload library before loading again & add LIBRARY_FILE_EXTENSION constant

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This commit is contained in:
Laytan Laats
2024-11-28 21:05:17 +01:00
parent 276928170c
commit 1cece52359
5 changed files with 39 additions and 21 deletions
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12
core/dynlib/example/example.odin
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@@ -21,12 +21,14 @@ Symbols :: struct {
main :: proc() {
sym: Symbols
LIB_PATH :: "lib." + dynlib.LIBRARY_FILE_EXTENSION
// Load symbols from `lib.dll` into Symbols struct.
// Each struct field is prefixed with `foo_` before lookup in the DLL's symbol table.
// The library's Handle (to unload) will be stored in `sym._my_lib_handle`. This way you can load multiple DLLs in one struct.
count, ok := dynlib.initialize_symbols(&sym, "lib.dll", "foo_", "_my_lib_handle")
count, ok := dynlib.initialize_symbols(&sym, LIB_PATH, "foo_", "_my_lib_handle")
defer dynlib.unload_library(sym._my_lib_handle)
fmt.printf("(Initial DLL Load) ok: %v. %v symbols loaded from lib.dll (%p).\n", ok, count, sym._my_lib_handle)
fmt.printf("(Initial DLL Load) ok: %v. %v symbols loaded from " + LIB_PATH + " (%p).\n", ok, count, sym._my_lib_handle)
if count > 0 {
fmt.println("42 + 42 =", sym.add(42, 42))
@@ -34,12 +36,12 @@ main :: proc() {
fmt.println("hellope =", sym.hellope^)
}
count, ok = dynlib.initialize_symbols(&sym, "lib.dll", "foo_", "_my_lib_handle")
fmt.printf("(DLL Reload) ok: %v. %v symbols loaded from lib.dll (%p).\n", ok, count, sym._my_lib_handle)
count, ok = dynlib.initialize_symbols(&sym, LIB_PATH, "foo_", "_my_lib_handle")
fmt.printf("(DLL Reload) ok: %v. %v symbols loaded from " + LIB_PATH + " (%p).\n", ok, count, sym._my_lib_handle)
if count > 0 {
fmt.println("42 + 42 =", sym.add(42, 42))
fmt.println("84 - 13 =", sym.sub(84, 13))
fmt.println("hellope =", sym.hellope^)
}
}
}