Changes required for Android port

Author: johnno1962

CoreFoundation/Base.subproj/CFPlatform.c

@@ -31,6 +31,10 @@
 
 #endif
 
+#if defined(__ANDROID__)
+#include <linux/prctl.h>
+#endif
+
 #if DEPLOYMENT_TARGET_MACOSX || DEPLOYMENT_TARGET_EMBEDDED || DEPLOYMENT_TARGET_EMBEDDED_MINI || DEPLOYMENT_TARGET_WINDOWS
 #define kCFPlatformInterfaceStringEncoding	kCFStringEncodingUTF8
 #else
@@ -1319,6 +1323,8 @@ _CFThreadRef _CFThreadCreate(const _CFThreadAttributes attrs, void *_Nullable (*
 CF_SWIFT_EXPORT void _CFThreadSetName(const char *_Nullable name) {
 #if DEPLOYMENT_TARGET_MACOSX || DEPLOYMENT_TARGET_EMBEDDED || DEPLOYMENT_TARGET_EMBEDDED_MINI
     pthread_setname_np(name);
+#elif defined(__ANDROID__)
+    prctl(PR_SET_NAME, (unsigned long) name, 0, 0, 0);
 #elif DEPLOYMENT_TARGET_LINUX
     pthread_setname_np(pthread_self(), name);
 #endif
@@ -1327,6 +1333,8 @@ CF_SWIFT_EXPORT void _CFThreadSetName(const char *_Nullable name) {
 CF_SWIFT_EXPORT int _CFThreadGetName(char *buf, int length) {
 #if DEPLOYMENT_TARGET_MACOSX || DEPLOYMENT_TARGET_EMBEDDED || DEPLOYMENT_TARGET_EMBEDDED_MINI
     return pthread_getname_np(pthread_self(), buf, length);
+#elif defined(__ANDROID__)
+    prctl(PR_GET_NAME, (unsigned long) buf, 0, 0, 0);
 #elif DEPLOYMENT_TARGET_LINUX
     return pthread_getname_np(pthread_self(), buf, length);
 #endif

CoreFoundation/Base.subproj/ForSwiftFoundationOnly.h

@@ -27,10 +27,9 @@
 #include <CoreFoundation/ForFoundationOnly.h>
 #include <fts.h>
 #include <pthread.h>
-#include <execinfo.h>
 
-#if __has_include(<malloc/malloc.h>)
-#include <malloc/malloc.h>
+#if __has_include(<execinfo.h>)
+#include <execinfo.h>
 #endif
 
 #if __has_include(<malloc/malloc.h>)

CoreFoundation/URL.subproj/CFURL.c

@@ -25,10 +25,10 @@
 #include <unistd.h>
 #include <sys/stat.h>
 #include <sys/types.h>
-#if __has_include(<sys/syslog.h>)
-#include <sys/syslog.h>
-#else
+#if DEPLOYMENT_TARGET_ANDROID
 #include <syslog.h>
+#else
+#include <sys/syslog.h>
 #endif
 #include <CoreFoundation/CFURLPriv.h>
 #endif

Foundation/Bundle.swift

@@ -53,8 +53,16 @@ open class Bundle: NSObject {
         self.init(path: url.path)
     }
 
-    public init(for aClass: AnyClass) { NSUnimplemented() }
-    
+#if os(Android)
+    public convenience init(for aClass: AnyClass) {
+        self.init(path: Bundle.main.bundlePath)!
+    }
+#else
+    public init(for aClass: AnyClass) {
+        NSUnimplemented()
+    }
+#endif
+
     public init?(identifier: String) {
         super.init()
 

Foundation/FileManager.swift

@@ -337,7 +337,8 @@ open class FileManager : NSObject {
 
         return result
     }
-    
+
+#if !os(Android)
     /* attributesOfFileSystemForPath:error: returns an NSDictionary of key/value pairs containing the attributes of the filesystem containing the provided path. If this method returns 'nil', an NSError will be returned by reference in the 'error' parameter. This method does not traverse a terminal symlink.
 
         This method replaces fileSystemAttributesAtPath:.
@@ -372,7 +373,8 @@ open class FileManager : NSObject {
 
         return result
     }
-    
+#endif
+
     /* createSymbolicLinkAtPath:withDestination:error: returns YES if the symbolic link that point at 'destPath' was able to be created at the location specified by 'path'. If this method returns NO, the link was unable to be created and an NSError will be returned by reference in the 'error' parameter. This method does not traverse a terminal symlink.
 
         This method replaces createSymbolicLinkAtPath:pathContent:

Foundation/Host.swift

@@ -65,6 +65,7 @@ open class Host: NSObject {
     }
 
     internal func _resolveCurrent() {
+#if !os(Android)
         var ifaddr: UnsafeMutablePointer<ifaddrs>? = nil
         if getifaddrs(&ifaddr) != 0 {
             return
@@ -88,6 +89,7 @@ open class Host: NSObject {
             }
             ifa = ifaValue.ifa_next
         }
+#endif
     }
 
     internal func _resolve() {
@@ -138,7 +140,7 @@ open class Host: NSObject {
                 }
                 let sa_len: socklen_t = socklen_t((family == AF_INET6) ? MemoryLayout<sockaddr_in6>.size : MemoryLayout<sockaddr_in>.size)
                 let lookupInfo = { (content: inout [String], flags: Int32) in
-                    if getnameinfo(info.ai_addr, sa_len, host, socklen_t(NI_MAXHOST), nil, 0, flags) == 0 {
+                    if getnameinfo(info.ai_addr, sa_len, host, numericCast(NI_MAXHOST), nil, 0, flags) == 0 {
                         content.append(String(cString: host))
                     }
                 }

Foundation/NSLog.swift

@@ -33,6 +33,9 @@ public func NSLogv(_ format: String, _ args: CVaListPointer) {
     CFLog1(kCFLogLevelWarning, message._cfObject)
 #else
     CFLog1(Int32(kCFLogLevelWarning), message._cfObject)
+#if os(Android)
+    print(message)
+#endif
 #endif
 }
 

Foundation/Thread.swift

@@ -250,7 +250,7 @@ open class Thread : NSObject {
         _cancelled = true
     }
 
-
+#if !os(Android)
     private class func backtraceAddresses<T>(_ body: (UnsafeMutablePointer<UnsafeMutableRawPointer?>, Int) -> [T]) -> [T] {
         // Same as swift/stdlib/public/runtime/Errors.cpp backtrace
         let maxSupportedStackDepth = 128;
@@ -284,6 +284,15 @@ open class Thread : NSObject {
             return symbols
         })
     }
+#else
+    open class var callStackReturnAddresses: [NSNumber] {
+        NSUnimplemented()
+    }
+
+    open class var callStackSymbols: [String] {
+        NSUnimplemented()
+    }
+#endif
 }
 
 extension NSNotification.Name {

Foundation/URLSession/http/EasyHandle.swift

@@ -57,9 +57,6 @@ internal final class _EasyHandle {
     fileprivate var pauseState: _PauseState = []
     internal var timeoutTimer: _TimeoutSource!
     internal lazy var errorBuffer = [UInt8](repeating: 0, count: Int(CFURLSessionEasyErrorSize))
-    #if os(Android)
-    static fileprivate var _CAInfoFile: UnsafeMutablePointer<Int8>?
-    #endif
 
     init(delegate: _EasyHandleDelegate) {
         self.delegate = delegate
@@ -107,7 +104,7 @@ internal protocol _EasyHandleDelegate: class {
     /// - returns: the number of bytes written to the `data` buffer, or `nil` to stop the current transfer immediately.
     func fill(writeBuffer buffer: UnsafeMutableBufferPointer<Int8>) -> _EasyHandle._WriteBufferResult
     /// The transfer for this handle completed.
-    /// - parameter errorCode: An NSURLError code, or `nil` if no error occured.
+    /// - parameter error: An NSError, or `nil` if no error occured.
     func transferCompleted(withError error: NSError?)
     /// Seek the input stream to the given position
     func seekInputStream(to position: UInt64) throws
@@ -172,20 +169,20 @@ extension _EasyHandle {
         let protocols = (CFURLSessionProtocolHTTP | CFURLSessionProtocolHTTPS)
         try! CFURLSession_easy_setopt_long(rawHandle, CFURLSessionOptionPROTOCOLS, protocols).asError()
         try! CFURLSession_easy_setopt_long(rawHandle, CFURLSessionOptionREDIR_PROTOCOLS, protocols).asError()
-        #if os(Android)
-            // See https://curl.haxx.se/docs/sslcerts.html
-            // For SSL to work you need "cacert.pem" to be accessable
-            // at the path pointed to by the URLSessionCAInfo env var.
-            // Downloadable here: https://curl.haxx.se/ca/cacert.pem
-            if let caInfo = _EasyHandle._CAInfoFile  {
-                if String(cString: caInfo) == "UNSAFE_SSL_NOVERIFY" {
-                    try! CFURLSession_easy_setopt_int(rawHandle, CFURLSessionOptionSSL_VERIFYPEER, 0).asError()
-                }
-                else {
-                    try! CFURLSession_easy_setopt_ptr(rawHandle, CFURLSessionOptionCAINFO, caInfo).asError()
-                }
+#if os(Android)
+        // See https://curl.haxx.se/docs/sslcerts.html
+        // For SSL on Android you need a "cacert.pem" to be
+        // accessible at the path pointed to by this env var.
+        // Downloadable here: https://curl.haxx.se/ca/cacert.pem
+        if let caInfo = getenv("URLSessionCertificateAuthorityInfoFile")  {
+            if String(cString: caInfo) == "INSECURE_SSL_NO_VERIFY" {
+                try! CFURLSession_easy_setopt_long(rawHandle, CFURLSessionOptionSSL_VERIFYPEER, 0).asError()
+            }
+            else {
+                try! CFURLSession_easy_setopt_ptr(rawHandle, CFURLSessionOptionCAINFO, caInfo).asError()
             }
-        #endif
+        }
+#endif
         //TODO: Added in libcurl 7.45.0
         //TODO: Set default protocol for schemeless URLs
         //CURLOPT_DEFAULT_PROTOCOL available only in libcurl 7.45.0
@@ -632,19 +629,6 @@ extension _EasyHandle._CurlStringList {
     }
 }
 
-#if os(Android)
-extension URLSession {
-
-    public static func setCAInfoFile(_ _CAInfoFile: String) {
-        free(_EasyHandle._CAInfoFile)
-        _CAInfoFile.withCString {
-            _EasyHandle._CAInfoFile = strdup($0)
-        }
-    }
-
-}
-#endif
-
 extension CFURLSessionEasyCode : Equatable {
     public static func ==(lhs: CFURLSessionEasyCode, rhs: CFURLSessionEasyCode) -> Bool {
         return lhs.value == rhs.value