diff --git a/library/Console-linux.cpp b/library/Console-linux.cpp index 083d4197b..d74c48045 100644 --- a/library/Console-linux.cpp +++ b/library/Console-linux.cpp @@ -143,22 +143,25 @@ namespace DFHack private: bool read_char(unsigned char & out) { - while(1) + FD_ZERO(&descriptor_set); + FD_SET(STDIN_FILENO, &descriptor_set); + FD_SET(exit_pipe[0], &descriptor_set); + int ret = TEMP_FAILURE_RETRY( + select (FD_SETSIZE,&descriptor_set, NULL, NULL, NULL) + ); + if(ret == -1) + return false; + if (FD_ISSET(exit_pipe[0], &descriptor_set)) + return false; + if (FD_ISSET(STDIN_FILENO, &descriptor_set)) { - while (select(FD_SETSIZE, &descriptor_set, NULL, NULL, NULL) < 0) - { - if(errno == EINTR) - continue; - return false; - } - if (FD_ISSET(STDIN_FILENO, &descriptor_set)) - { - // read byte from stdin - read(STDIN_FILENO, &out, 1); - return true; - } - if (FD_ISSET(exit_pipe[0], &descriptor_set)) + // read byte from stdin + ret = TEMP_FAILURE_RETRY( + read(STDIN_FILENO, &out, 1) + ); + if(ret == -1) return false; + return true; } } protected: