From 170b4a1f01f36df0ac0d6dcf6045525e1bde8a15 Mon Sep 17 00:00:00 2001
From: Enno Boland <g@s01.de>
Date: Tue, 13 Aug 2024 00:00:50 +0200
Subject: [PATCH] wip

---
 subprojects/cextras.wrap |  2 +-
 tools/src/unpack.c       | 22 ++++++++++++++++++----
 2 files changed, 19 insertions(+), 5 deletions(-)

diff --git a/subprojects/cextras.wrap b/subprojects/cextras.wrap
index 5562806c..ecf29456 100644
--- a/subprojects/cextras.wrap
+++ b/subprojects/cextras.wrap
@@ -1,6 +1,6 @@
 [wrap-git]
 directory = cextras
-revision = 63d5d1eae0ba7f66a34965d3c153bb0add64325d
+revision = 5cc7d68fec580b292eec4d32d84084dbaed97f69
 url = https://github.com/Gottox/cextras.git
 depth = 1
 
diff --git a/tools/src/unpack.c b/tools/src/unpack.c
index e2c0464a..0be1e9f9 100644
--- a/tools/src/unpack.c
+++ b/tools/src/unpack.c
@@ -39,15 +39,15 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <sys/resource.h>
 #include <sys/stat.h>
 #include <unistd.h>
 #include <utime.h>
 
-#define EXTRACT_BARRIER_INTERVAL (1024 * 1)
-
 typedef int (*extract_fn)(
 		const char *, enum SqshFileType, const struct SqshFile *);
 
+size_t max_open_files = 0;
 size_t extracted_files = 0;
 bool do_chown = false;
 bool verbose = false;
@@ -234,7 +234,7 @@ extract_file(const char *path, const struct SqshFile *file) {
 	fd = -1;
 
 	extracted_files++;
-	if (extracted_files % EXTRACT_BARRIER_INTERVAL == 0) {
+	if (extracted_files % max_open_files == 0) {
 		rv = sqsh_threadpool_wait(threadpool);
 		if (rv < 0) {
 			goto out;
@@ -449,6 +449,7 @@ main(int argc, char *argv[]) {
 	struct SqshArchive *sqsh;
 	struct SqshFile *src_root = NULL;
 	uint64_t offset = 0;
+	struct rlimit limits = {0};
 	if (isatty(STDOUT_FILENO)) {
 		print_segment = print_escaped;
 	}
@@ -498,7 +499,15 @@ main(int argc, char *argv[]) {
 		goto out;
 	}
 
-	threadpool = sqsh_threadpool_new(1, &rv);
+	threadpool = sqsh_threadpool_new(0, &rv);
+
+	rv = getrlimit(RLIMIT_NOFILE, &limits);
+	if (rv < 0) {
+		perror("getrlimit");
+		rv = EXIT_FAILURE;
+		goto out;
+	}
+	max_open_files = limits.rlim_cur / 2;
 
 	src_root = sqsh_lopen(sqsh, src_path, &rv);
 	if (rv < 0) {
@@ -523,6 +532,11 @@ main(int argc, char *argv[]) {
 		rv = EXIT_FAILURE;
 		goto out;
 	}
+	rv = sqsh_threadpool_wait(threadpool);
+	if (rv < 0) {
+		rv = EXIT_FAILURE;
+		goto out;
+	}
 	sqsh_threadpool_free(threadpool);
 	threadpool = NULL;