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Protect global data with locks

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kamkow1
2025-06-22 15:32:13 +02:00
parent a7f8ebea09
commit 5ee77b4628
7 changed files with 90 additions and 139 deletions
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34
baked.c
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@ -5,6 +5,7 @@
#include "stb/stb_ds.h"
#include "baked.h"
#include "locked.h"
INCBIN(gpp1, "./gpp1");
@ -24,7 +25,17 @@ INCBIN(blog_welcome_md, "./blog/welcome.md");
INCBIN(blog_weird_page_md, "./blog/weird-page.md");
INCBIN(blog_curious_case_of_gebs_md, "./blog/curious-case-of-gebs.md");
Baked_Resource *baked_resources = NULL;
locked(Baked_Resource *) baked_resources = locked_init(nil);
void lock_baked_resources(void)
{
lockx(&baked_resources);
}
void unlock_baked_resources(void)
{
unlockx(&baked_resources);
}
void add_baked_resource(char *key, const uchar *data, size_t size)
{
@ -34,11 +45,12 @@ void add_baked_resource(char *key, const uchar *data, size_t size)
abort();
}
write(fd, data, size);
shput(baked_resources, key, fd);
shput(baked_resources.value, key, fd);
}
void init_baked_resources(void)
{
lockx(&baked_resources);
add_baked_resource("home.html", home_html_data, home_html_size);
add_baked_resource("page-missing.html", page_missing_html_data, page_missing_html_size);
add_baked_resource("template-blog.html", template_blog_html_data, template_blog_html_size);
@ -53,21 +65,25 @@ void init_baked_resources(void)
add_baked_resource("blog-welcome.md", blog_welcome_md_data, blog_welcome_md_size);
add_baked_resource("blog-weird-page.md", blog_weird_page_md_data, blog_weird_page_md_size);
add_baked_resource("blog-curious-case-of-gebs.md", blog_curious_case_of_gebs_md_data, blog_curious_case_of_gebs_md_size);
unlockx(&baked_resources);
}
void free_baked_resources(void)
{
for (size_t i = 0; i < shlen(baked_resources); i++) {
close(baked_resources[i].value);
lockx(&baked_resources);
for (size_t i = 0; i < shlen(baked_resources.value); i++) {
close(baked_resources.value[i].value);
}
shfree(baked_resources);
shfree(baked_resources.value);
unlockx(&baked_resources);
}
bool get_baked_resource_path(char *key, char *buf, size_t size)
{
if (shgeti(baked_resources, key) != -1) {
int fd = shget(baked_resources, key);
if (shgeti(baked_resources.value, key) != -1) {
int fd = shget(baked_resources.value, key);
snprintf(buf, size, "/proc/%d/fd/%d", getpid(), fd);
unlockx(&baked_resources);
return true;
}
return false;
@ -75,8 +91,8 @@ bool get_baked_resource_path(char *key, char *buf, size_t size)
void baked_resource_each(void (*f)(Baked_Resource *resource, void *udata), void *udata)
{
for (size_t i = 0; i < shlen(baked_resources); i++) {
f(&baked_resources[i], udata);
for (size_t i = 0; i < shlen(baked_resources.value); i++) {
f(&baked_resources.value[i], udata);
}
}