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Diffstat (limited to 'printer/include/mipi_syst_guid.h')
| -rw-r--r-- | printer/include/mipi_syst_guid.h | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/printer/include/mipi_syst_guid.h b/printer/include/mipi_syst_guid.h new file mode 100644 index 0000000..4ce5e53 --- /dev/null +++ b/printer/include/mipi_syst_guid.h @@ -0,0 +1,116 @@ +/* + Copyright (c) 2018, MIPI Alliance, Inc. + All rights reserved. + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions + are met: + + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + + * Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in + the documentation and/or other materials provided with the + distribution. + + * Neither the name of the copyright holder nor the names of its + contributors may be used to endorse or promote products derived + from this software without specific prior written permission. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +/* + * Contributors: + * Norbert Schulz (Intel Corporation) - Initial API and implementation + */ + +#ifndef MIPI_SYST_GUID_H_included +#define MIPI_SYST_GUID_H_included + +#include <string> +#include <stdexcept> +#include "mipi_syst_printer.h" + + +MIPI_SYST_NAMESPACE_BEGIN + +/// Container for 128 bit wide GUID (see https://www.ietf.org/rfc/rfc4122.txt) +// +class guid { +public: + union { + uint8_t b[16]; + uint64_t ll[2]; + } u; + + guid() + { + u.ll[0] = u.ll[1] = 0; + } + + guid(const uint8_t * p) + { + u.ll[0] = *(uint64_t*)p; + u.ll[1] = *(uint64_t*)(p+sizeof(uint64_t)); + } + + guid(const std::string& f) + { + if (!parse(f)) { + throw std::invalid_argument( + "invalid guid format " + + f + + " expected {xxxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx} notation." + ); + } + } + + /** Helper to parse a GUID "{...}" string into the binrary representation. + * @param str GUID ascii string + * @param guid resulting guid + * @return true if guid could be parserd + */ + bool parse(const std::string& fmt); + + bool operator<(const guid& other) const + { + if (u.ll[0] == other.u.ll[0]) { + return u.ll[1] < other.u.ll[1]; + } else { + return u.ll[0] < other.u.ll[0]; + } + } + + guid operator&(const guid& mask) const + { + guid result(*this); + + result.u.ll[0] &= mask.u.ll[0]; + result.u.ll[1] &= mask.u.ll[1]; + + return result; + } + + bool operator==(const guid& other) const + { + return u.ll[0] == other.u.ll[0] && u.ll[1] == other.u.ll[1]; + } +}; + +std::ostream& operator<<(std::ostream& os, const guid& guid); + +MIPI_SYST_NAMESPACE_END + +#endif // MIPI_SYST_COLLATERL_H_included |