Keep track of the Zig GPA test.
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21
drop/app.c
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21
drop/app.c
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "./ipc.h"
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int main(void) {
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printf ("Init context.\n");
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void *ctx = ipc_context_init ();
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if (ctx == NULL) {
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printf ("Cannot init context.\n");
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return 1;
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}
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printf ("Deinit context\n");
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ipc_context_deinit (ctx);
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printf ("Context freed.\n");
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return 0;
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}
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9
drop/ipc.h
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9
drop/ipc.h
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#ifndef LIBIPC
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#define LIBIPC
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#include <stdint.h>
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void* ipc_context_init (void);
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void ipc_context_deinit (void* ctx);
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#endif
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45
drop/ipc.zig
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45
drop/ipc.zig
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const std = @import("std");
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const fmt = std.fmt;
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const testing = std.testing;
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const print = std.debug.print;
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const GPA = std.heap.GeneralPurposeAllocator(.{ .safety = true });
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pub const Context = struct {
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const Self = @This();
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rundir: [:0]u8,
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gpa: GPA,
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pub fn init(gpa: *GPA) !Self {
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var rundir = try gpa.allocator().dupeZ(u8, "/tmp/libipc-run/");
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return Self{ .rundir = rundir, .gpa = gpa.* };
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}
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pub fn deinit(self: *Self) void {
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self.gpa.allocator().free(self.rundir);
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}
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};
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export fn ipc_context_init() callconv(.C) ?*anyopaque {
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std.log.err("Let's use GPA!", .{});
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var gpa = GPA{};
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var new_context = gpa.allocator().create(Context) catch return null;
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new_context.* = Context.init(&gpa) catch return null;
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return new_context;
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}
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export fn ipc_context_deinit(opaque_ctx: *anyopaque) callconv(.C) void {
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var ctx = @ptrCast(*Context, @alignCast(@alignOf(Context), opaque_ctx));
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ctx.deinit();
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var gpa = ctx.gpa; // save the gpa before destroying ctx
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std.log.err("Let's destroy Context!", .{});
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gpa.allocator().destroy(ctx);
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_ = gpa.deinit(); // now deinit the gpa
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}
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test "context_init_deinit" {
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const ctx = ipc_context_init();
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try std.testing.expect(ctx != null);
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ipc_context_deinit(ctx.?);
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}
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20
drop/makefile
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20
drop/makefile
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# No sugar for you!
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build: lib
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gcc -Os -I. -static -o app app.c libipc.a
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lib:
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zig build-lib ipc.zig -OReleaseSmall
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run:
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$(VALGRIND) ./app
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include ../mk/makefile.valgrind
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# Another library.
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lib-alt:
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zig build-lib test-gpa2.zig -OReleaseSmall
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clean:
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rm app *.a *.o
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39
drop/test-gpa2.zig
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39
drop/test-gpa2.zig
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const std = @import("std");
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const fmt = std.fmt;
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const testing = std.testing;
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const print = std.debug.print;
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var gpa = std.heap.GeneralPurposeAllocator(.{ .safety = true }){};
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pub const Context = struct {
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const Self = @This();
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rundir: [:0]u8,
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pub fn init() !Self {
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var rundir = try gpa.allocator().dupeZ(u8, "/tmp/libipc-run/");
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return Self{ .rundir = rundir };
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}
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pub fn deinit(self: *Self) void {
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gpa.allocator().free(self.rundir);
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}
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};
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export fn ipc_context_init() callconv(.C) ?*anyopaque {
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var new_context = gpa.allocator().create(Context) catch return null;
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new_context.* = Context.init() catch return null;
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return new_context;
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}
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export fn ipc_context_deinit(opaque_ctx: *anyopaque) callconv(.C) void {
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var ctx = @ptrCast(*Context, @alignCast(@alignOf(Context), opaque_ctx));
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ctx.deinit();
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gpa.allocator().destroy(ctx);
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}
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test "context_init_deinit" {
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const ctx = ipc_context_init();
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try std.testing.expect(ctx != null);
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ipc_context_deinit(ctx.?);
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}
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