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Merge pull request #6995 

60bc676 epee: readline_buffer - fix thread safety, fix sync() after stop() (xiphon)
This commit is contained in:
luigi1111 2020-11-29 01:55:15 -06:00
parent c041550ffa 60bc676c14
commit a15d781707
No known key found for this signature in database
GPG Key ID: F4ACA0183641E010
1 changed files with 9 additions and 1 deletions
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10
contrib/epee/src/readline_buffer.cpp
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@ -51,6 +51,7 @@ rdln::readline_buffer::readline_buffer()
void rdln::readline_buffer::start() void rdln::readline_buffer::start()
{ {
boost::lock_guard<boost::mutex> lock(sync_mutex);
if(m_cout_buf != NULL) if(m_cout_buf != NULL)
return; return;
m_cout_buf = std::cout.rdbuf(); m_cout_buf = std::cout.rdbuf();
@ -60,6 +61,7 @@ void rdln::readline_buffer::start()
void rdln::readline_buffer::stop() void rdln::readline_buffer::stop()
{ {
boost::lock_guard<boost::mutex> lock(sync_mutex);
if(m_cout_buf == NULL) if(m_cout_buf == NULL)
return; return;
std::cout.rdbuf(m_cout_buf); std::cout.rdbuf(m_cout_buf);
@ -88,9 +90,9 @@ rdln::linestatus rdln::readline_buffer::get_line(std::string& line) const
void rdln::readline_buffer::set_prompt(const std::string& prompt) void rdln::readline_buffer::set_prompt(const std::string& prompt)
{ {
boost::lock_guard<boost::mutex> lock(sync_mutex);
if(m_cout_buf == NULL) if(m_cout_buf == NULL)
return; return;
boost::lock_guard<boost::mutex> lock(sync_mutex);
rl_set_prompt(std::string(m_prompt_length, ' ').c_str()); rl_set_prompt(std::string(m_prompt_length, ' ').c_str());
rl_redisplay(); rl_redisplay();
rl_set_prompt(prompt.c_str()); rl_set_prompt(prompt.c_str());
@ -113,6 +115,12 @@ const std::vector<std::string>& rdln::readline_buffer::get_completions()
int rdln::readline_buffer::sync() int rdln::readline_buffer::sync()
{ {
boost::lock_guard<boost::mutex> lock(sync_mutex); boost::lock_guard<boost::mutex> lock(sync_mutex);
if (m_cout_buf == nullptr)
{
return -1;
}
#if RL_READLINE_VERSION < 0x0700 #if RL_READLINE_VERSION < 0x0700
char lbuf[2] = {0,0}; char lbuf[2] = {0,0};
char *line = NULL; char *line = NULL;