lib/cpp-httplib
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clangformat and README update

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This commit is contained in:
yhirose 2022-07-15 17:32:38 -04:00
parent 916b2a8fd3
commit 07e614eef7
2 changed files with 13 additions and 7 deletions
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14
README.md
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@ -212,15 +212,23 @@ svr.set_error_handler([](const auto& req, auto& res) {
The exception handler gets called if a user routing handler throws an error. The exception handler gets called if a user routing handler throws an error.
```cpp ```cpp
svr.set_exception_handler([](const auto& req, auto& res, std::exception &e) { svr.set_exception_handler([](const auto& req, auto& res, std::exception_ptr ep) {
res.status = 500;
auto fmt = "<h1>Error 500</h1><p>%s</p>"; auto fmt = "<h1>Error 500</h1><p>%s</p>";
char buf[BUFSIZ]; char buf[BUFSIZ];
snprintf(buf, sizeof(buf), fmt, e.what()); try {
std::rethrow_exception(ep);
} catch (std::exception &e) {
snprintf(buf, sizeof(buf), fmt, e.what());
} catch (...) { // See the following NOTE
snprintf(buf, sizeof(buf), fmt, "Unknown Exception");
}
res.set_content(buf, "text/html"); res.set_content(buf, "text/html");
res.status = 500;
}); });
``` ```
NOTE: if you don't provide the `catch (...)` block for a rethrown exception pointer, an uncaught exception will end up causing the server crash. Be careful!
### Pre routing handler ### Pre routing handler
```cpp ```cpp

6
test/test.cc
View File

@ -1251,11 +1251,9 @@ TEST(ExceptionHandlerTest, ContentLength) {
svr.set_exception_handler([](const Request & /*req*/, Response &res, svr.set_exception_handler([](const Request & /*req*/, Response &res,
std::exception_ptr ep) { std::exception_ptr ep) {
EXPECT_FALSE(ep == nullptr); EXPECT_FALSE(ep == nullptr);
try{ try {
std::rethrow_exception(ep); std::rethrow_exception(ep);
}catch(std::exception& e){ } catch (std::exception &e) { EXPECT_EQ("abc", std::string(e.what())); }
EXPECT_EQ("abc", std::string(e.what()));
}
res.status = 500; res.status = 500;
res.set_content("abcdefghijklmnopqrstuvwxyz", res.set_content("abcdefghijklmnopqrstuvwxyz",
"text/html"); // <= Content-Length still 13 at this point "text/html"); // <= Content-Length still 13 at this point