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feat(thread_pool): name worker threads tpool-svc-N #244

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Merged
sgerbino merged 1 commit into from
May 11, 2026
Merged

feat(thread_pool): name worker threads tpool-svc-N #244

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14 changes: 11 additions & 3 deletions include/boost/corosio/detail/thread_pool.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -13,8 +13,10 @@
#include <boost/corosio/detail/config.hpp>
#include <boost/corosio/detail/intrusive.hpp>
#include <boost/capy/ex/execution_context.hpp>
#include <boost/capy/test/thread_name.hpp>

#include <condition_variable>
#include <cstdio>
#include <mutex>
#include <stdexcept>
#include <thread>
Expand Down Expand Up @@ -81,7 +83,7 @@ class thread_pool final : public capy::execution_context::service
std::vector<std::thread> threads_;
bool shutdown_ = false;

void worker_loop();
void worker_loop(unsigned index);

public:
using key_type = thread_pool;
Expand Down Expand Up @@ -110,7 +112,7 @@ class thread_pool final : public capy::execution_context::service
try
{
for (unsigned i = 0; i < num_threads; ++i)
threads_.emplace_back([this] { worker_loop(); });
threads_.emplace_back([this, i] { worker_loop(i + 1); });
}
catch (...)
{
Expand Down Expand Up @@ -145,8 +147,14 @@ class thread_pool final : public capy::execution_context::service
};

inline void
thread_pool::worker_loop()
thread_pool::worker_loop(unsigned index)
{
// Name format chosen to fit Linux's 15-char pthread limit:
// "tpool-svc-" (10) + up to 4 digit index leaves "tpool-svc-9999".
char name[16];
std::snprintf(name, sizeof(name), "tpool-svc-%u", index);
capy::set_current_thread_name(name);

for (;;)
{
pool_work_item* w;
Expand Down
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