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dl: add dl.open_opt/2, dl.sym_opt/2 and dl.dlerror/0 utility functions

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This commit is contained in:
Delyan Angelov
2021-03-24 11:47:04 +02:00
parent 0bde55f77e
commit 9e48826bcb
4 changed files with 45 additions and 2 deletions
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4
examples/dynamic_library_loading/use.v
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@ -7,10 +7,10 @@ type FNAdder = fn (int, int) int
fn main() {
library_file_path := os.join_path(os.getwd(), dl.get_libname('library'))
handle := dl.open(library_file_path, dl.rtld_lazy)
handle := dl.open_opt(library_file_path, dl.rtld_lazy) ?
eprintln('handle: ${ptr_str(handle)}')
mut f := FNAdder(0)
f = dl.sym(handle, 'add_1')
f = dl.sym_opt(handle, 'add_1') ?
eprintln('f: ${ptr_str(f)}')
res := f(1, 2)
eprintln('res: $res')