src/jdk.incubator.jpackage/unix/native/libapplauncher/PosixPlatform.cpp
branchJDK-8200758-branch
changeset 58994 b09ba68c6a19
parent 57543 bcd1ab268a7d
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/jdk.incubator.jpackage/unix/native/libapplauncher/PosixPlatform.cpp	Fri Nov 08 14:53:03 2019 -0500
@@ -0,0 +1,314 @@
+/*
+ * Copyright (c) 2014, 2019, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+#include "PosixPlatform.h"
+
+#include "PlatformString.h"
+#include "FilePath.h"
+#include "Helpers.h"
+
+#include <assert.h>
+#include <stdbool.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <sys/sysctl.h>
+#include <sys/file.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+#include <errno.h>
+#include <limits.h>
+#include <pwd.h>
+#include <iostream>
+#include <algorithm>
+#include <dlfcn.h>
+#include <signal.h>
+
+using namespace std;
+
+PosixPlatform::PosixPlatform(void) {
+}
+
+PosixPlatform::~PosixPlatform(void) {
+}
+
+TString PosixPlatform::GetTempDirectory() {
+    struct passwd* pw = getpwuid(getuid());
+    TString homedir(pw->pw_dir);
+    homedir += getTmpDirString();
+    if (!FilePath::DirectoryExists(homedir)) {
+        if (!FilePath::CreateDirectory(homedir, false)) {
+            homedir.clear();
+        }
+    }
+
+    return homedir;
+}
+
+TString PosixPlatform::fixName(const TString& name) {
+    TString fixedName(name);
+    const TString chars("?:*<>/\\");
+    for (TString::const_iterator it = chars.begin(); it != chars.end(); it++) {
+        fixedName.erase(std::remove(fixedName.begin(),
+                fixedName.end(), *it), fixedName.end());
+    }
+    return fixedName;
+}
+
+MessageResponse PosixPlatform::ShowResponseMessage(TString title,
+        TString description) {
+    MessageResponse result = mrCancel;
+
+    printf("%s %s (Y/N)\n", PlatformString(title).toPlatformString(),
+            PlatformString(description).toPlatformString());
+    fflush(stdout);
+
+    std::string input;
+    std::cin >> input;
+
+    if (input == "Y") {
+        result = mrOK;
+    }
+
+    return result;
+}
+
+Module PosixPlatform::LoadLibrary(TString FileName) {
+    return dlopen(StringToFileSystemString(FileName), RTLD_LAZY);
+}
+
+void PosixPlatform::FreeLibrary(Module AModule) {
+    dlclose(AModule);
+}
+
+Procedure PosixPlatform::GetProcAddress(Module AModule,
+        std::string MethodName) {
+    return dlsym(AModule, PlatformString(MethodName));
+}
+
+Process* PosixPlatform::CreateProcess() {
+    return new PosixProcess();
+}
+
+void PosixPlatform::addPlatformDependencies(JavaLibrary *pJavaLibrary) {
+}
+
+void Platform::CopyString(char *Destination,
+        size_t NumberOfElements, const char *Source) {
+    strncpy(Destination, Source, NumberOfElements);
+
+    if (NumberOfElements > 0) {
+        Destination[NumberOfElements - 1] = '\0';
+    }
+}
+
+void Platform::CopyString(wchar_t *Destination,
+        size_t NumberOfElements, const wchar_t *Source) {
+    wcsncpy(Destination, Source, NumberOfElements);
+
+    if (NumberOfElements > 0) {
+        Destination[NumberOfElements - 1] = '\0';
+    }
+}
+
+// Owner must free the return value.
+
+MultibyteString Platform::WideStringToMultibyteString(
+        const wchar_t* value) {
+    MultibyteString result;
+    size_t count = 0;
+
+    if (value == NULL) {
+        return result;
+    }
+
+    count = wcstombs(NULL, value, 0);
+    if (count > 0) {
+        result.data = new char[count + 1];
+        result.data[count] = '\0';
+        result.length = count;
+        wcstombs(result.data, value, count);
+    }
+
+    return result;
+}
+
+// Owner must free the return value.
+
+WideString Platform::MultibyteStringToWideString(const char* value) {
+    WideString result;
+    size_t count = 0;
+
+    if (value == NULL) {
+        return result;
+    }
+
+    count = mbstowcs(NULL, value, 0);
+    if (count > 0) {
+        result.data = new wchar_t[count + 1];
+        result.data[count] = '\0';
+        result.length = count;
+        mbstowcs(result.data, value, count);
+    }
+
+    return result;
+}
+
+void PosixPlatform::InitStreamLocale(wios *stream) {
+    // Nothing to do for POSIX platforms.
+}
+
+PosixProcess::PosixProcess() : Process() {
+    FChildPID = 0;
+    FRunning = false;
+    FOutputHandle = 0;
+    FInputHandle = 0;
+}
+
+PosixProcess::~PosixProcess() {
+    Terminate();
+}
+
+bool PosixProcess::ReadOutput() {
+    bool result = false;
+
+    if (FOutputHandle != 0 && IsRunning() == true) {
+        char buffer[4096] = {0};
+
+        ssize_t count = read(FOutputHandle, buffer, sizeof (buffer));
+
+        if (count == -1) {
+            if (errno == EINTR) {
+                // continue;
+            } else {
+                perror("read");
+                exit(1);
+            }
+        } else if (count == 0) {
+            // break;
+        } else {
+            std::list<TString> output = Helpers::StringToArray(buffer);
+            FOutput.splice(FOutput.end(), output, output.begin(), output.end());
+            result = true;
+        }
+    }
+
+    return false;
+}
+
+bool PosixProcess::IsRunning() {
+    bool result = false;
+
+    if (kill(FChildPID, 0) == 0) {
+        result = true;
+    }
+
+    return result;
+}
+
+bool PosixProcess::Terminate() {
+    bool result = false;
+
+    if (IsRunning() == true && FRunning == true) {
+        FRunning = false;
+        Cleanup();
+        int status = kill(FChildPID, SIGTERM);
+
+        if (status == 0) {
+            result = true;
+        } else {
+#ifdef DEBUG
+            if (errno == EINVAL) {
+                printf("Kill error: The value of the sig argument is an invalid or unsupported signal number.");
+            } else if (errno == EPERM) {
+                printf("Kill error: The process does not have permission to send the signal to any receiving process.");
+            } else if (errno == ESRCH) {
+                printf("Kill error: No process or process group can be found corresponding to that specified by pid.");
+            }
+#endif // DEBUG
+            if (IsRunning() == true) {
+                status = kill(FChildPID, SIGKILL);
+
+                if (status == 0) {
+                    result = true;
+                }
+            }
+        }
+    }
+
+    return result;
+}
+
+bool PosixProcess::Wait() {
+    bool result = false;
+
+    int status = 0;
+    pid_t wpid = 0;
+
+    wpid = wait(&status);
+    if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) {
+        if (errno != EINTR) {
+            status = -1;
+        }
+    }
+
+#ifdef DEBUG
+    if (WIFEXITED(status)) {
+        printf("child exited, status=%d\n", WEXITSTATUS(status));
+    } else if (WIFSIGNALED(status)) {
+        printf("child killed (signal %d)\n", WTERMSIG(status));
+    } else if (WIFSTOPPED(status)) {
+        printf("child stopped (signal %d)\n", WSTOPSIG(status));
+#ifdef WIFCONTINUED // Not all implementations support this
+    } else if (WIFCONTINUED(status)) {
+        printf("child continued\n");
+#endif // WIFCONTINUED
+    } else { // Non-standard case -- may never happen
+        printf("Unexpected status (0x%x)\n", status);
+    }
+#endif // DEBUG
+
+    if (wpid != -1) {
+        result = true;
+    }
+
+    return result;
+}
+
+TProcessID PosixProcess::GetProcessID() {
+    return FChildPID;
+}
+
+void PosixProcess::SetInput(TString Value) {
+    if (FInputHandle != 0) {
+        if (write(FInputHandle, Value.data(), Value.size()) < 0) {
+            throw Exception(_T("Internal Error - write failed"));
+        }
+    }
+}
+
+std::list<TString> PosixProcess::GetOutput() {
+    ReadOutput();
+    return Process::GetOutput();
+}