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zig libvirt: add String struct for handling null-terminated strings

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Jeeves 2024-06-25 10:09:22 -06:00
parent 8ae3069450
commit 30fcde4b5b
2 changed files with 62 additions and 32 deletions
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42
server/src/main.zig
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@ -6,9 +6,9 @@ const fs = std.fs;
const libvirt = @import("libvirt.zig");
pub fn main() !void {
var gpa = heap.GeneralPurposeAllocator(.{}){};
defer _ = gpa.deinit();
const allocator = gpa.allocator();
var arena = heap.ArenaAllocator.init(heap.raw_c_allocator);
defer arena.deinit();
const allocator = arena.allocator();
const connection = try libvirt.Connection.connect("qemu:///system", allocator);
defer connection.close();
@ -20,7 +20,7 @@ pub fn main() !void {
nix.cwd_dir = flake_dir;
_ = try nix.spawnAndWait();
nix.argv = &[_][]const u8{ "nix", "build", ".#beforeInstall", "-o", "beforeInstall" };
// _ = try nix.spawnAndWait();
_ = try nix.spawnAndWait();
nix.argv = &[_][]const u8{ "nix", "build", ".#afterInstall", "-o", "afterInstall" };
// _ = try nix.spawnAndWait();
nix.argv = &[_][]const u8{ "nix", "build", ".#beforeBoot", "-o", "beforeBoot" };
@ -32,7 +32,11 @@ pub fn main() !void {
defer volume_def.close();
const volume_xml = try volume_def.readToEndAlloc(allocator, 1024 * 1024);
defer allocator.free(volume_xml);
// const volume = try connection.defineVolume(volume_xml);
const domain_beforeinstall_def = try flake_dir.openFile("beforeInstall", .{});
defer domain_beforeinstall_def.close();
const domain_beforeinstall_xml = try domain_beforeinstall_def.readToEndAlloc(allocator, 1024 * 1024 * 1024);
defer allocator.free(domain_beforeinstall_xml);
// --------------
@ -68,22 +72,22 @@ pub fn main() !void {
const name = try pool.getName();
// std.debug.print("name: {s}\n", .{name});
if (mem.eql(u8, name, "default")) {
// std.debug.print("xml: {s}\n\n", .{volume_xml});
const xml_str =
\\<volume>
\\ <name>wintest.qcow2</name>
\\ <capacity unit='GB'>16</capacity>
\\ <target>
\\ <format type='qcow2'/>
\\ </target>
\\</volume>
;
const volume = try pool.createVolume(xml_str, &[_]libvirt.Pool.Volume.CreateFlags{
libvirt.Pool.Volume.CreateFlags.Validate,
});
std.debug.print("pool: {any}\n", .{volume});
const vol_str = try libvirt.String.init(allocator, volume_xml);
defer vol_str.deinit();
const volume = pool.createVolume(vol_str, &[_]libvirt.Pool.Volume.CreateFlags{}) catch |err| blk: {
if (err == libvirt.VirError.StorageVolExist) {
break :blk try pool.lookupVolumeByName("wintest.qcow2");
} else return err;
};
_ = volume;
break;
}
}
const dom_str = try libvirt.String.init(allocator, domain_beforeinstall_xml);
defer dom_str.deinit();
const domain = try connection.createDomain(dom_str, &[_]libvirt.Domain.CreateFlags{});
_ = domain;
}
pub const DomainSpec = struct {