1*aca3beaaSApple OSS Distributions #include <libkern/libkern.h> 2*aca3beaaSApple OSS Distributions #include <libkern/section_keywords.h> 3*aca3beaaSApple OSS Distributions #include <libkern/compression/compression.h> 4*aca3beaaSApple OSS Distributions 5*aca3beaaSApple OSS Distributions #if defined(SECURITY_READ_ONLY_LATE) 6*aca3beaaSApple OSS Distributions SECURITY_READ_ONLY_LATE(const compression_ki_t*) compression_ki_ptr = NULL; 7*aca3beaaSApple OSS Distributions static SECURITY_READ_ONLY_LATE(registration_callback_t) registration_callback = NULL; 8*aca3beaaSApple OSS Distributions #else 9*aca3beaaSApple OSS Distributions const compression_ki_t* compression_ki_ptr = NULL; 10*aca3beaaSApple OSS Distributions static registration_callback_t registration_callback = NULL; 11*aca3beaaSApple OSS Distributions #endif 12*aca3beaaSApple OSS Distributions 13*aca3beaaSApple OSS Distributions void compression_interface_register(const compression_ki_t * ki)14*aca3beaaSApple OSS Distributionscompression_interface_register(const compression_ki_t *ki) 15*aca3beaaSApple OSS Distributions { 16*aca3beaaSApple OSS Distributions if (compression_ki_ptr) { 17*aca3beaaSApple OSS Distributions panic("compression interface already set"); 18*aca3beaaSApple OSS Distributions } 19*aca3beaaSApple OSS Distributions 20*aca3beaaSApple OSS Distributions compression_ki_ptr = ki; 21*aca3beaaSApple OSS Distributions 22*aca3beaaSApple OSS Distributions if (registration_callback) { 23*aca3beaaSApple OSS Distributions registration_callback(); 24*aca3beaaSApple OSS Distributions } 25*aca3beaaSApple OSS Distributions } 26*aca3beaaSApple OSS Distributions 27*aca3beaaSApple OSS Distributions void compression_interface_set_registration_callback(registration_callback_t callback)28*aca3beaaSApple OSS Distributionscompression_interface_set_registration_callback(registration_callback_t callback) 29*aca3beaaSApple OSS Distributions { 30*aca3beaaSApple OSS Distributions if (callback && registration_callback) { 31*aca3beaaSApple OSS Distributions panic("compression interface registration callback is already set"); 32*aca3beaaSApple OSS Distributions } 33*aca3beaaSApple OSS Distributions 34*aca3beaaSApple OSS Distributions registration_callback = callback; 35*aca3beaaSApple OSS Distributions } 36