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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:45:59 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:45:59 +0000 |
commit | 19fcec84d8d7d21e796c7624e521b60d28ee21ed (patch) | |
tree | 42d26aa27d1e3f7c0b8bd3fd14e7d7082f5008dc /src/jaegertracing/thrift/lib/rb/ext/memory_buffer.c | |
parent | Initial commit. (diff) | |
download | ceph-upstream/16.2.11+ds.tar.xz ceph-upstream/16.2.11+ds.zip |
Adding upstream version 16.2.11+ds.upstream/16.2.11+dsupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/jaegertracing/thrift/lib/rb/ext/memory_buffer.c | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/src/jaegertracing/thrift/lib/rb/ext/memory_buffer.c b/src/jaegertracing/thrift/lib/rb/ext/memory_buffer.c new file mode 100644 index 000000000..8b52c4a3e --- /dev/null +++ b/src/jaegertracing/thrift/lib/rb/ext/memory_buffer.c @@ -0,0 +1,134 @@ +/** + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you 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 <ruby.h> +#include <constants.h> +#include <bytes.h> +#include <macros.h> + +ID buf_ivar_id; +ID index_ivar_id; + +ID slice_method_id; + +int GARBAGE_BUFFER_SIZE; + +#define GET_BUF(self) rb_ivar_get(self, buf_ivar_id) + +VALUE rb_thrift_memory_buffer_write(VALUE self, VALUE str); +VALUE rb_thrift_memory_buffer_read(VALUE self, VALUE length_value); +VALUE rb_thrift_memory_buffer_read_byte(VALUE self); +VALUE rb_thrift_memory_buffer_read_into_buffer(VALUE self, VALUE buffer_value, VALUE size_value); + +VALUE rb_thrift_memory_buffer_write(VALUE self, VALUE str) { + VALUE buf = GET_BUF(self); + str = force_binary_encoding(str); + rb_str_buf_cat(buf, StringValuePtr(str), RSTRING_LEN(str)); + return Qnil; +} + +VALUE rb_thrift_memory_buffer_read(VALUE self, VALUE length_value) { + int length = FIX2INT(length_value); + + VALUE index_value = rb_ivar_get(self, index_ivar_id); + int index = FIX2INT(index_value); + + VALUE buf = GET_BUF(self); + VALUE data = rb_funcall(buf, slice_method_id, 2, index_value, length_value); + + index += length; + if (index > RSTRING_LEN(buf)) { + index = RSTRING_LEN(buf); + } + if (index >= GARBAGE_BUFFER_SIZE) { + rb_ivar_set(self, buf_ivar_id, rb_funcall(buf, slice_method_id, 2, INT2FIX(index), INT2FIX(RSTRING_LEN(buf) - 1))); + index = 0; + } + rb_ivar_set(self, index_ivar_id, INT2FIX(index)); + + if (RSTRING_LEN(data) < length) { + rb_raise(rb_eEOFError, "Not enough bytes remain in memory buffer"); + } + + return data; +} + +VALUE rb_thrift_memory_buffer_read_byte(VALUE self) { + VALUE index_value = rb_ivar_get(self, index_ivar_id); + int index = FIX2INT(index_value); + + VALUE buf = GET_BUF(self); + if (index >= RSTRING_LEN(buf)) { + rb_raise(rb_eEOFError, "Not enough bytes remain in memory buffer"); + } + char byte = RSTRING_PTR(buf)[index++]; + + if (index >= GARBAGE_BUFFER_SIZE) { + rb_ivar_set(self, buf_ivar_id, rb_funcall(buf, slice_method_id, 2, INT2FIX(index), INT2FIX(RSTRING_LEN(buf) - 1))); + index = 0; + } + rb_ivar_set(self, index_ivar_id, INT2FIX(index)); + + int result = (int) byte; + return INT2FIX(result); +} + +VALUE rb_thrift_memory_buffer_read_into_buffer(VALUE self, VALUE buffer_value, VALUE size_value) { + int i = 0; + int size = FIX2INT(size_value); + int index; + VALUE buf = GET_BUF(self); + + index = FIX2INT(rb_ivar_get(self, index_ivar_id)); + while (i < size) { + if (index >= RSTRING_LEN(buf)) { + rb_raise(rb_eEOFError, "Not enough bytes remain in memory buffer"); + } + char byte = RSTRING_PTR(buf)[index++]; + + if (i >= RSTRING_LEN(buffer_value)) { + rb_raise(rb_eIndexError, "index %d out of string", i); + } + ((char*)RSTRING_PTR(buffer_value))[i] = byte; + i++; + } + + if (index >= GARBAGE_BUFFER_SIZE) { + rb_ivar_set(self, buf_ivar_id, rb_funcall(buf, slice_method_id, 2, INT2FIX(index), INT2FIX(RSTRING_LEN(buf) - 1))); + index = 0; + } + rb_ivar_set(self, index_ivar_id, INT2FIX(index)); + + return INT2FIX(i); +} + +void Init_memory_buffer() { + VALUE thrift_memory_buffer_class = rb_const_get(thrift_module, rb_intern("MemoryBufferTransport")); + rb_define_method(thrift_memory_buffer_class, "write", rb_thrift_memory_buffer_write, 1); + rb_define_method(thrift_memory_buffer_class, "read", rb_thrift_memory_buffer_read, 1); + rb_define_method(thrift_memory_buffer_class, "read_byte", rb_thrift_memory_buffer_read_byte, 0); + rb_define_method(thrift_memory_buffer_class, "read_into_buffer", rb_thrift_memory_buffer_read_into_buffer, 2); + + buf_ivar_id = rb_intern("@buf"); + index_ivar_id = rb_intern("@index"); + + slice_method_id = rb_intern("slice"); + + GARBAGE_BUFFER_SIZE = FIX2INT(rb_const_get(thrift_memory_buffer_class, rb_intern("GARBAGE_BUFFER_SIZE"))); +} |