From d607495b892fe6ffa1cd30eaad114eec97d77681 Mon Sep 17 00:00:00 2001
From: Christopher Ferris <cferris@google.com>
Date: Fri, 10 Jan 2014 16:05:12 -0800
Subject: Move to C++ for debuggerd.

This is part 1, only including the bare minimum changes because
our diff tool doesn't easily show differences when a file moves. This
also breaks it into a small chunk in case some other changes break things,
as unlikely as I think that will be.

Change-Id: Ib7a3e7a2cc1ac574d15b65fda23813ebcf5d31af
---
 debuggerd/utility.c | 130 ----------------------------------------------------
 1 file changed, 130 deletions(-)
 delete mode 100644 debuggerd/utility.c

(limited to 'debuggerd/utility.c')

diff --git a/debuggerd/utility.c b/debuggerd/utility.c
deleted file mode 100644
index 41be9821e..000000000
--- a/debuggerd/utility.c
+++ /dev/null
@@ -1,130 +0,0 @@
-/* system/debuggerd/utility.c
-**
-** Copyright 2008, The Android Open Source Project
-**
-** Licensed under the Apache License, Version 2.0 (the "License"); 
-** you may not use this file except in compliance with the License. 
-** You may obtain a copy of the License at 
-**
-**     http://www.apache.org/licenses/LICENSE-2.0 
-**
-** Unless required by applicable law or agreed to in writing, software 
-** distributed under the License is distributed on an "AS IS" BASIS, 
-** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
-** See the License for the specific language governing permissions and 
-** limitations under the License.
-*/
-
-#include <stddef.h>
-#include <stdbool.h>
-#include <stdio.h>
-#include <string.h>
-#include <errno.h>
-#include <unistd.h>
-#include <signal.h>
-#include <log/logd.h>
-#include <sys/ptrace.h>
-#include <sys/wait.h>
-#include <arpa/inet.h>
-#include <assert.h>
-
-#include "utility.h"
-
-const int sleep_time_usec = 50000;         /* 0.05 seconds */
-const int max_total_sleep_usec = 10000000; /* 10 seconds */
-
-static int write_to_am(int fd, const char* buf, int len) {
-    int to_write = len;
-    while (to_write > 0) {
-        int written = TEMP_FAILURE_RETRY( write(fd, buf + len - to_write, to_write) );
-        if (written < 0) {
-            /* hard failure */
-            LOG("AM write failure (%d / %s)\n", errno, strerror(errno));
-            return -1;
-        }
-        to_write -= written;
-    }
-    return len;
-}
-
-void _LOG(log_t* log, int scopeFlags, const char *fmt, ...) {
-    char buf[512];
-    bool want_tfd_write;
-    bool want_log_write;
-    bool want_amfd_write;
-    int len = 0;
-
-    va_list ap;
-    va_start(ap, fmt);
-
-    // where is the information going to go?
-    want_tfd_write = log && log->tfd >= 0;
-    want_log_write = IS_AT_FAULT(scopeFlags) && (!log || !log->quiet);
-    want_amfd_write = IS_AT_FAULT(scopeFlags) && !IS_SENSITIVE(scopeFlags) && log && log->amfd >= 0;
-
-    // if we're going to need the literal string, generate it once here
-    if (want_tfd_write || want_amfd_write) {
-        vsnprintf(buf, sizeof(buf), fmt, ap);
-        len = strlen(buf);
-    }
-
-    if (want_tfd_write) {
-        write(log->tfd, buf, len);
-    }
-
-    if (want_log_write) {
-        // whatever goes to logcat also goes to the Activity Manager
-        __android_log_vprint(ANDROID_LOG_INFO, "DEBUG", fmt, ap);
-        if (want_amfd_write && len > 0) {
-            int written = write_to_am(log->amfd, buf, len);
-            if (written <= 0) {
-                // timeout or other failure on write; stop informing the activity manager
-                log->amfd = -1;
-            }
-        }
-    }
-    va_end(ap);
-}
-
-int wait_for_signal(pid_t tid, int* total_sleep_time_usec) {
-    for (;;) {
-        int status;
-        pid_t n = waitpid(tid, &status, __WALL | WNOHANG);
-        if (n < 0) {
-            if(errno == EAGAIN) continue;
-            LOG("waitpid failed: %s\n", strerror(errno));
-            return -1;
-        } else if (n > 0) {
-            XLOG("waitpid: n=%d status=%08x\n", n, status);
-            if (WIFSTOPPED(status)) {
-                return WSTOPSIG(status);
-            } else {
-                LOG("unexpected waitpid response: n=%d, status=%08x\n", n, status);
-                return -1;
-            }
-        }
-
-        if (*total_sleep_time_usec > max_total_sleep_usec) {
-            LOG("timed out waiting for tid=%d to die\n", tid);
-            return -1;
-        }
-
-        /* not ready yet */
-        XLOG("not ready yet\n");
-        usleep(sleep_time_usec);
-        *total_sleep_time_usec += sleep_time_usec;
-    }
-}
-
-void wait_for_stop(pid_t tid, int* total_sleep_time_usec) {
-    siginfo_t si;
-    while (TEMP_FAILURE_RETRY(ptrace(PTRACE_GETSIGINFO, tid, 0, &si)) < 0 && errno == ESRCH) {
-        if (*total_sleep_time_usec > max_total_sleep_usec) {
-            LOG("timed out waiting for tid=%d to stop\n", tid);
-            break;
-        }
-
-        usleep(sleep_time_usec);
-        *total_sleep_time_usec += sleep_time_usec;
-    }
-}
-- 
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