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authormidipix <writeonce@midipix.org>2016-10-23 22:37:34 -0400
committermidipix <writeonce@midipix.org>2016-11-11 00:22:48 -0500
commit4ecd081e04021478af3ae9879bdc6b228dbc8c05 (patch)
tree26a29522dc3b7b80ad2966ab7071cf7f2dc104ac /src/internal
parent3a9f95ab03988cd1d4755f6da7c9a24b0c9ff121 (diff)
downloadmdso-4ecd081e04021478af3ae9879bdc6b228dbc8c05.tar.bz2
mdso-4ecd081e04021478af3ae9879bdc6b228dbc8c05.tar.xz
internals: error trace implementation: added mdso_record_error().
Diffstat (limited to 'src/internal')
-rw-r--r--src/internal/mdso_errinfo_impl.c41
-rw-r--r--src/internal/mdso_errinfo_impl.h80
2 files changed, 121 insertions, 0 deletions
diff --git a/src/internal/mdso_errinfo_impl.c b/src/internal/mdso_errinfo_impl.c
new file mode 100644
index 0000000..e106f47
--- /dev/null
+++ b/src/internal/mdso_errinfo_impl.c
@@ -0,0 +1,41 @@
+/****************************************************************/
+/* mdso: midipix dso scavenger */
+/* Copyright (C) 2015--2016 Z. Gilboa */
+/* Released under GPLv2 and GPLv3; see COPYING.MDSO. */
+/****************************************************************/
+
+#include <mdso/mdso.h>
+#include "mdso_driver_impl.h"
+#include "mdso_errinfo_impl.h"
+
+int mdso_record_error(
+ const struct mdso_driver_ctx * dctx,
+ int syserror,
+ int liberror,
+ const char * function,
+ int line,
+ unsigned flags,
+ void * ctx)
+{
+ struct mdso_driver_ctx_impl * ictx;
+ struct mdso_error_info * erri;
+
+ ictx = mdso_get_driver_ictx(dctx);
+
+ if (ictx->errinfp == ictx->erricap)
+ return -1;
+
+ *ictx->errinfp = &ictx->erribuf[ictx->errinfp - ictx->erriptr];
+ erri = *ictx->errinfp;
+
+ erri->syserror = syserror;
+ erri->liberror = liberror;
+ erri->function = function;
+ erri->line = line;
+ erri->flags = flags;
+ erri->ctx = ctx;
+
+ ictx->errinfp++;
+
+ return -1;
+}
diff --git a/src/internal/mdso_errinfo_impl.h b/src/internal/mdso_errinfo_impl.h
new file mode 100644
index 0000000..5a56e70
--- /dev/null
+++ b/src/internal/mdso_errinfo_impl.h
@@ -0,0 +1,80 @@
+/****************************************************************/
+/* mdso: midipix dso scavenger */
+/* Copyright (C) 2015--2016 Z. Gilboa */
+/* Released under GPLv2 and GPLv3; see COPYING.MDSO. */
+/****************************************************************/
+
+#include <errno.h>
+#include <mdso/mdso.h>
+
+int mdso_record_error(
+ const struct mdso_driver_ctx *,
+ int syserror,
+ int liberror,
+ const char * function,
+ int line,
+ unsigned flags,
+ void * ctx);
+
+#define MDSO_SYSTEM_ERROR(dctx) \
+ mdso_record_error( \
+ dctx, \
+ errno, \
+ 0, \
+ __func__, \
+ __LINE__, \
+ MDSO_ERROR_TOP_LEVEL, \
+ 0)
+
+#define MDSO_BUFFER_ERROR(dctx) \
+ mdso_record_error( \
+ dctx, \
+ ENOBUFS, \
+ 0, \
+ __func__, \
+ __LINE__, \
+ MDSO_ERROR_TOP_LEVEL, \
+ 0)
+
+#define MDSO_SPAWN_ERROR(dctx) \
+ mdso_record_error( \
+ dctx, \
+ errno, \
+ 0, \
+ __func__, \
+ __LINE__, \
+ MDSO_ERROR_TOP_LEVEL \
+ | (errno ? 0 \
+ : MDSO_ERROR_CHILD), \
+ 0)
+
+#define MDSO_FILE_ERROR(dctx) \
+ mdso_record_error( \
+ dctx, \
+ EIO, \
+ 0, \
+ __func__, \
+ __LINE__, \
+ MDSO_ERROR_TOP_LEVEL, \
+ 0)
+
+#define MDSO_CUSTOM_ERROR(dctx,liberror) \
+ mdso_record_error( \
+ dctx, \
+ 0, \
+ liberror, \
+ __func__, \
+ __LINE__, \
+ MDSO_ERROR_TOP_LEVEL \
+ | MDSO_ERROR_CUSTOM, \
+ 0)
+
+#define MDSO_NESTED_ERROR(dctx) \
+ mdso_record_error( \
+ dctx, \
+ 0, \
+ 0, \
+ __func__, \
+ __LINE__, \
+ MDSO_ERROR_NESTED, \
+ 0)