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author | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
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committer | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
commit | 5f8de423f190bbb79a62f804151bc24824fa32d8 (patch) | |
tree | 10027f336435511475e392454359edea8e25895d /netwerk/streamconv/test/Converters.cpp | |
parent | 49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff) | |
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Add m-esr52 at 52.6.0
Diffstat (limited to 'netwerk/streamconv/test/Converters.cpp')
-rw-r--r-- | netwerk/streamconv/test/Converters.cpp | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/netwerk/streamconv/test/Converters.cpp b/netwerk/streamconv/test/Converters.cpp new file mode 100644 index 000000000..61b114d77 --- /dev/null +++ b/netwerk/streamconv/test/Converters.cpp @@ -0,0 +1,140 @@ +#include "Converters.h" +#include "nsIStringStream.h" +#include "nsCOMPtr.h" +#include "nsComponentManagerUtils.h" + +#include <stdio.h> + +////////////////////////////////////////////////// +// TestConverter +////////////////////////////////////////////////// + +#define NS_TESTCONVERTER_CID \ +{ /* B8A067B0-4450-11d3-A16E-0050041CAF44 */ \ + 0xb8a067b0, \ + 0x4450, \ + 0x11d3, \ + {0xa1, 0x6e, 0x00, 0x50, 0x04, 0x1c, 0xaf, 0x44} \ +} + +NS_DEFINE_CID(kTestConverterCID, NS_TESTCONVERTER_CID); + +NS_IMPL_ISUPPORTS(TestConverter, + nsIStreamConverter, + nsIStreamListener, + nsIRequestObserver) + +TestConverter::TestConverter() { +} + +// Convert aFromStream (of type aFromType), to _retval (nsIInputStream of type aToType). +// This Convert method simply converts the stream byte-by-byte, to the first character +// in the aToType "string". +NS_IMETHODIMP +TestConverter::Convert(nsIInputStream *aFromStream, + const char *aFromType, + const char *aToType, + nsISupports *ctxt, + nsIInputStream **_retval) { + char buf[1024+1]; + uint32_t read; + nsresult rv = aFromStream->Read(buf, 1024, &read); + if (NS_FAILED(rv) || read == 0) return rv; + + // verify that the data we're converting matches the from type + // if it doesn't then we're being handed the wrong data. + char fromChar = *aFromType; + + if (fromChar != buf[0]) { + printf("We're receiving %c, but are supposed to have %c.\n", buf[0], fromChar); + return NS_ERROR_FAILURE; + } + + + // Get the first character + char toChar = *aToType; + + for (uint32_t i = 0; i < read; i++) + buf[i] = toChar; + + buf[read] = '\0'; + + nsCOMPtr<nsIStringInputStream> str + (do_CreateInstance("@mozilla.org/io/string-input-stream;1", &rv)); + NS_ENSURE_SUCCESS(rv, rv); + + rv = str->SetData(buf, read); + NS_ENSURE_SUCCESS(rv, rv); + + NS_ADDREF(*_retval = str); + return NS_OK; +} + +/* This method initializes any internal state before the stream converter + * begins asynchronous conversion */ +NS_IMETHODIMP +TestConverter::AsyncConvertData(const char *aFromType, + const char *aToType, + nsIStreamListener *aListener, + nsISupports *ctxt) { + NS_ASSERTION(aListener, "null listener"); + + mListener = aListener; + + // based on these types, setup internal state to handle the appropriate conversion. + fromType = aFromType; + toType = aToType; + + return NS_OK; +} + +// nsIStreamListener method +/* This method handles asyncronous conversion of data. */ +NS_IMETHODIMP +TestConverter::OnDataAvailable(nsIRequest* request, + nsISupports *ctxt, + nsIInputStream *inStr, + uint64_t sourceOffset, + uint32_t count) { + nsresult rv; + nsCOMPtr<nsIInputStream> convertedStream; + // just make a syncronous call to the Convert() method. + // Anything can happen here, I just happen to be using the sync call to + // do the actual conversion. + rv = Convert(inStr, fromType.get(), toType.get(), ctxt, getter_AddRefs(convertedStream)); + if (NS_FAILED(rv)) return rv; + + uint64_t len = 0; + convertedStream->Available(&len); + + uint64_t offset = sourceOffset; + while (len > 0) { + uint32_t count = saturated(len); + rv = mListener->OnDataAvailable(request, ctxt, convertedStream, offset, count); + if (NS_FAILED(rv)) return rv; + + offset += count; + len -= count; + } + return NS_OK; +} + +// nsIRequestObserver methods +/* These methods just pass through directly to the mListener */ +NS_IMETHODIMP +TestConverter::OnStartRequest(nsIRequest* request, nsISupports *ctxt) { + return mListener->OnStartRequest(request, ctxt); +} + +NS_IMETHODIMP +TestConverter::OnStopRequest(nsIRequest* request, nsISupports *ctxt, + nsresult aStatus) { + return mListener->OnStopRequest(request, ctxt, aStatus); +} + +nsresult +CreateTestConverter(nsISupports* aOuter, REFNSIID aIID, void** aResult) +{ + nsCOMPtr<nsISupports> conv = new TestConverter(); + return conv->QueryInterface(aIID, aResult); +} |