diff options
Diffstat (limited to 'src/daemon.h')
| -rw-r--r-- | src/daemon.h | 104 |
1 files changed, 3 insertions, 101 deletions
diff --git a/src/daemon.h b/src/daemon.h index d860d1f..cb6736a 100644 --- a/src/daemon.h +++ b/src/daemon.h @@ -22,6 +22,7 @@ #ifndef _DEFAULT_SOURCE # define _DEFAULT_SOURCE #endif +#include "common.h" #include <stddef.h> #include <errno.h> #include <string.h> @@ -83,23 +84,6 @@ -#ifndef t -/** - * Go to `fail` if a statement evaluates to non-zero. - * - * @param ... The statement. - */ -# ifndef DEBUG -# define t(...) do { if (__VA_ARGS__) goto fail; } while (0) -# else -# define t(...) do { if ((__VA_ARGS__) ? (failed__ = #__VA_ARGS__) : 0) { (perror)(failed__); goto fail; } } while (0) -static const char *failed__ = NULL; -# define perror(_) ((void)(_)) -# endif -#endif - - - /** * `dup2(OLD, NEW)` and, on success, `close(OLD)`. * @@ -144,43 +128,6 @@ fail: \ /** - * A queued job. - */ -struct job { - /** - * The job number. - */ - size_t no; - - /** - * The number of “argv” elements in `payload`. - */ - int argc; - - /** - * The clock in which `ts` is measured. - */ - clockid_t clk; - - /** - * The time when the job shall be executed. - */ - struct timespec ts; - - /** - * The number of bytes in `payload`. - */ - size_t n; - - /** - * “argv” followed by “envp”. - */ - char payload[]; -}; - - - -/** * Wrapper for `pread` that reads the required amount of data. * * @param fildes See pread(3). @@ -205,6 +152,8 @@ ssize_t pwriten(int fildes, const void *buf, size_t nbyte, size_t offset); /** * Wrapper for `read` that reads all available data. * + * `errno` is set to `EBADMSG` on success. + * * @param fd The file descriptor from which to to read. * @param buf Output parameter for the data. * @param n Output parameter for the number of read bytes. @@ -289,50 +238,3 @@ int remove_job(const char *jobno, int runjob); */ struct job **get_jobs(void); - - -/** - * This block of code allows us to compile with DEBUG=valgrind - * or DEBUG=strace and have all exec:s be wrapped in - * valgrind --leak-check=full --show-leak-kinds=all or - * strace, respectively. Very useful for debugging. However, - * children do not inherit strace, so between forking and - * exec:ing we do not have strace. - */ -#if 1 && defined(DEBUG) -# if ((DEBUG == 2) || (DEBUG == 3)) -# ifdef __GNUC__ -# pragma GCC diagnostic push -# pragma GCC diagnostic ignored "-Wdiscarded-qualifiers" -__attribute__((__used__)) -# endif -# if DEBUG == 2 -# define DEBUGPROG "strace" -# else -# define DEBUGPROG "valgrind" -# endif -# define execl(path, _, ...) (execl)("/usr/bin/" DEBUGPROG, "/usr/bin/" DEBUGPROG, path, __VA_ARGS__) -# define execve(...) execve_(__VA_ARGS__) -static int -execve_(const char *path, char *const argv[], char *const envp[]) -{ - size_t n = 0; - char **new_argv = NULL; - int x = (DEBUG - 2) * 2, saved_errno; - while (argv[n++]); - t (!(new_argv = malloc((n + 1 + (size_t)x) * sizeof(char *)))); - new_argv[x] = "--show-leak-kinds=all"; - new_argv[1] = "--leak-check=full"; - new_argv[0] = "/usr/bin/" DEBUGPROG; - new_argv[1 + x] = path; - memcpy(new_argv + 2 + x, argv + 1, (n - 1) * sizeof(char *)); - (execve)(*new_argv, new_argv, envp); -fail: - return saved_errno = errno, free(new_argv), errno = saved_errno, -1; -} -# ifdef __GNUC__ -# pragma GCC diagnostic pop -# endif -# endif -#endif - |