diff options
Diffstat (limited to 'src/platform/posix/posix_debug.c')
| -rw-r--r-- | src/platform/posix/posix_debug.c | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/src/platform/posix/posix_debug.c b/src/platform/posix/posix_debug.c index 56b443e9..f1c6f9e7 100644 --- a/src/platform/posix/posix_debug.c +++ b/src/platform/posix/posix_debug.c @@ -11,8 +11,10 @@ #ifdef PLATFORM_POSIX_DEBUG +#include <errno.h> #include <stdlib.h> #include <stdio.h> +#include <string.h> void nni_plat_abort(void) @@ -28,4 +30,81 @@ nni_plat_println(const char *message) } +const char * +nni_plat_strerror(int errnum) +{ + if (errnum > NNG_ESYSERR) { + errnum -= NNG_ESYSERR; + } + return (strerror(errnum)); +} + + +#define NNI_ERR(x, y) { x, y }, + +// There are of course other errors than these, but these are the ones +// that we might reasonably expect and want to handle "cleanly". Most of +// the others should be handled by the system error code. Note that EFAULT +// is very special, because if the error code is *that*, then we should panic +// because an invalid system call has been made. (That would be a sign +// of a serious software bug, in other words.) POSIX says that all these +// error codes should exist, and be distinct positive numbers. (EWOULDBLOCK +// and EAGAIN are permitted to have the same value.) +static struct { + int posix_err; + int nng_err; +} +nni_plat_errnos[] = { + NNI_ERR(EINTR, NNG_EINTR) + NNI_ERR(EINVAL, NNG_EINVAL) + NNI_ERR(ENOMEM, NNG_ENOMEM) + NNI_ERR(EACCES, NNG_EPERM) + NNI_ERR(EADDRINUSE, NNG_EADDRINUSE) + NNI_ERR(EADDRNOTAVAIL, NNG_EADDRINVAL) + NNI_ERR(EAFNOSUPPORT, NNG_ENOTSUP) + NNI_ERR(EAGAIN, NNG_EAGAIN) + NNI_ERR(EBADF, NNG_ECLOSED) + NNI_ERR(EBUSY, NNG_EBUSY) + NNI_ERR(ECONNABORTED, NNG_ECLOSED) + NNI_ERR(ECONNREFUSED, NNG_ECONNREFUSED) + NNI_ERR(ECONNRESET, NNG_ECLOSED) + NNI_ERR(EHOSTUNREACH, NNG_EUNREACHABLE) + NNI_ERR(ENETUNREACH, NNG_EUNREACHABLE) + NNI_ERR(ENAMETOOLONG, NNG_EINVAL) + NNI_ERR(ENOENT, NNG_ENOENT) + NNI_ERR(ENOBUFS, NNG_ENOMEM) + NNI_ERR(ENOPROTOOPT, NNG_ENOTSUP) + NNI_ERR(ENOSYS, NNG_ENOTSUP) + NNI_ERR(ENOTSUP, NNG_ENOTSUP) + NNI_ERR(EPERM, NNG_EPERM) + NNI_ERR(EPIPE, NNG_ECLOSED) + NNI_ERR(EPROTO, NNG_EPROTO) + NNI_ERR(EPROTONOSUPPORT, NNG_ENOTSUP) + NNI_ERR(ETIME, NNG_ETIMEDOUT) + NNI_ERR(ETIMEDOUT, NNG_ETIMEDOUT) + NNI_ERR(EWOULDBLOCK, NNG_EAGAIN) + NNI_ERR(0, 0) // must be last +}; + +int +nni_plat_errno(int errnum) +{ + int i; + + if (errnum == 0) { + return (0); + } + if (errnum == EFAULT) { + nni_panic("System EFAULT encountered!"); + } + for (i = 0; nni_plat_errnos[i].nng_err != 0; i++) { + if (errnum == nni_plat_errnos[i].posix_err) { + return (nni_plat_errnos[i].nng_err); + } + } + // Other system errno. + return (NNG_ESYSERR + errnum); +} + + #endif // PLATFORM_POSIX_DEBUG |