From 49f178ed94b5fad00d25dbd12adea0bf4732f803 Mon Sep 17 00:00:00 2001
From: gatecat <gatecat@ds0.me>
Date: Fri, 8 Apr 2022 13:42:54 +0100
Subject: Split up common into kernel,place,route

Signed-off-by: gatecat <gatecat@ds0.me>
---
 common/kernel/log.cc | 198 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 198 insertions(+)
 create mode 100644 common/kernel/log.cc

(limited to 'common/kernel/log.cc')

diff --git a/common/kernel/log.cc b/common/kernel/log.cc
new file mode 100644
index 00000000..8b1ad43b
--- /dev/null
+++ b/common/kernel/log.cc
@@ -0,0 +1,198 @@
+/*
+ *  nextpnr -- Next Generation Place and Route
+ *
+ *  Copyright (C) 2018  Claire Xenia Wolf <claire@yosyshq.com>
+ *
+ *  Permission to use, copy, modify, and/or distribute this software for any
+ *  purpose with or without fee is hereby granted, provided that the above
+ *  copyright notice and this permission notice appear in all copies.
+ *
+ *  THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ *  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ *  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ *  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ *  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ *  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ *  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ */
+
+#include <list>
+#include <map>
+#include <set>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <vector>
+
+#include "log.h"
+
+NEXTPNR_NAMESPACE_BEGIN
+
+NPNR_NORETURN void logv_error(const char *format, va_list ap) NPNR_ATTRIBUTE(noreturn);
+
+std::vector<std::pair<std::ostream *, LogLevel>> log_streams;
+log_write_type log_write_function = nullptr;
+
+std::string log_last_error;
+void (*log_error_atexit)() = NULL;
+
+dict<LogLevel, int, loglevel_hash_ops> message_count_by_level;
+static int log_newline_count = 0;
+bool had_nonfatal_error = false;
+
+std::string stringf(const char *fmt, ...)
+{
+    std::string string;
+    va_list ap;
+
+    va_start(ap, fmt);
+    string = vstringf(fmt, ap);
+    va_end(ap);
+
+    return string;
+}
+
+std::string vstringf(const char *fmt, va_list ap)
+{
+    std::string string;
+    char *str = NULL;
+
+#if defined(_WIN32) || defined(__CYGWIN__)
+    int sz = 64 + strlen(fmt), rc;
+    while (1) {
+        va_list apc;
+        va_copy(apc, ap);
+        str = (char *)realloc(str, sz);
+        rc = vsnprintf(str, sz, fmt, apc);
+        va_end(apc);
+        if (rc >= 0 && rc < sz)
+            break;
+        sz *= 2;
+    }
+#else
+    if (vasprintf(&str, fmt, ap) < 0)
+        str = NULL;
+#endif
+
+    if (str != NULL) {
+        string = str;
+        free(str);
+    }
+
+    return string;
+}
+
+void logv(const char *format, va_list ap, LogLevel level = LogLevel::LOG_MSG)
+{
+    //
+    // Trim newlines from the beginning
+    while (format[0] == '\n' && format[1] != 0) {
+        log_always("\n");
+        format++;
+    }
+
+    std::string str = vstringf(format, ap);
+
+    if (str.empty())
+        return;
+
+    size_t nnl_pos = str.find_last_not_of('\n');
+    if (nnl_pos == std::string::npos)
+        log_newline_count += str.size();
+    else
+        log_newline_count = str.size() - nnl_pos - 1;
+
+    for (auto f : log_streams)
+        if (f.second <= level)
+            *f.first << str;
+    if (log_write_function)
+        log_write_function(str);
+}
+
+void log_with_level(LogLevel level, const char *format, ...)
+{
+    message_count_by_level[level]++;
+    va_list ap;
+    va_start(ap, format);
+    logv(format, ap, level);
+    va_end(ap);
+}
+
+void logv_prefixed(const char *prefix, const char *format, va_list ap, LogLevel level)
+{
+    std::string message = vstringf(format, ap);
+
+    log_with_level(level, "%s%s", prefix, message.c_str());
+    log_flush();
+}
+
+void log_always(const char *format, ...)
+{
+    va_list ap;
+    va_start(ap, format);
+    logv(format, ap, LogLevel::ALWAYS_MSG);
+    va_end(ap);
+}
+
+void log(const char *format, ...)
+{
+    va_list ap;
+    va_start(ap, format);
+    logv(format, ap, LogLevel::LOG_MSG);
+    va_end(ap);
+}
+
+void log_info(const char *format, ...)
+{
+    va_list ap;
+    va_start(ap, format);
+    logv_prefixed("Info: ", format, ap, LogLevel::INFO_MSG);
+    va_end(ap);
+}
+
+void log_warning(const char *format, ...)
+{
+    va_list ap;
+    va_start(ap, format);
+    logv_prefixed("Warning: ", format, ap, LogLevel::WARNING_MSG);
+    va_end(ap);
+}
+
+void log_error(const char *format, ...)
+{
+    va_list ap;
+    va_start(ap, format);
+    logv_prefixed("ERROR: ", format, ap, LogLevel::ERROR_MSG);
+
+    if (log_error_atexit)
+        log_error_atexit();
+
+    throw log_execution_error_exception();
+}
+
+void log_break()
+{
+    if (log_newline_count < 2)
+        log("\n");
+    if (log_newline_count < 2)
+        log("\n");
+}
+
+void log_nonfatal_error(const char *format, ...)
+{
+    va_list ap;
+    va_start(ap, format);
+    logv_prefixed("ERROR: ", format, ap, LogLevel::ERROR_MSG);
+    va_end(ap);
+    had_nonfatal_error = true;
+}
+
+void log_flush()
+{
+    for (auto f : log_streams)
+        f.first->flush();
+}
+
+NEXTPNR_NAMESPACE_END
-- 
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