1*5e3eaea3SApple OSS Distributions #include <libkern/libkern.h> 2*5e3eaea3SApple OSS Distributions #include <libkern/section_keywords.h> 3*5e3eaea3SApple OSS Distributions #include <libkern/compression/compression.h> 4*5e3eaea3SApple OSS Distributions 5*5e3eaea3SApple OSS Distributions #if defined(SECURITY_READ_ONLY_LATE) 6*5e3eaea3SApple OSS Distributions SECURITY_READ_ONLY_LATE(const compression_ki_t*) compression_ki_ptr = NULL; 7*5e3eaea3SApple OSS Distributions static SECURITY_READ_ONLY_LATE(registration_callback_t) registration_callback = NULL; 8*5e3eaea3SApple OSS Distributions #else 9*5e3eaea3SApple OSS Distributions const compression_ki_t* compression_ki_ptr = NULL; 10*5e3eaea3SApple OSS Distributions static registration_callback_t registration_callback = NULL; 11*5e3eaea3SApple OSS Distributions #endif 12*5e3eaea3SApple OSS Distributions 13*5e3eaea3SApple OSS Distributions void compression_interface_register(const compression_ki_t * ki)14*5e3eaea3SApple OSS Distributionscompression_interface_register(const compression_ki_t *ki) 15*5e3eaea3SApple OSS Distributions { 16*5e3eaea3SApple OSS Distributions if (compression_ki_ptr) { 17*5e3eaea3SApple OSS Distributions panic("compression interface already set"); 18*5e3eaea3SApple OSS Distributions } 19*5e3eaea3SApple OSS Distributions 20*5e3eaea3SApple OSS Distributions compression_ki_ptr = ki; 21*5e3eaea3SApple OSS Distributions 22*5e3eaea3SApple OSS Distributions if (registration_callback) { 23*5e3eaea3SApple OSS Distributions registration_callback(); 24*5e3eaea3SApple OSS Distributions } 25*5e3eaea3SApple OSS Distributions } 26*5e3eaea3SApple OSS Distributions 27*5e3eaea3SApple OSS Distributions void compression_interface_set_registration_callback(registration_callback_t callback)28*5e3eaea3SApple OSS Distributionscompression_interface_set_registration_callback(registration_callback_t callback) 29*5e3eaea3SApple OSS Distributions { 30*5e3eaea3SApple OSS Distributions if (callback && registration_callback) { 31*5e3eaea3SApple OSS Distributions panic("compression interface registration callback is already set"); 32*5e3eaea3SApple OSS Distributions } 33*5e3eaea3SApple OSS Distributions 34*5e3eaea3SApple OSS Distributions registration_callback = callback; 35*5e3eaea3SApple OSS Distributions } 36