Binary compatibility report for the libmemcached library between 0.10 and 0.11 versions on x86

Test Info

Library Name	libmemcached
Version #1	0.10
Version #2	0.11
CPU Type	x86
GCC Version	4.6.1

Test Results

Total Header Files	1
Total Shared Libraries	1
Total Symbols / Types	39 / 49
Verdict	Incompatible (51.3%)

Problem Summary

	Severity	Count
Added Symbols	-	0
Removed Symbols	High	0
Problems with Data Types	High	2
	Medium	14
	Low	27
Problems with Symbols	High	0
	Medium	0
	Low	0
Problems with Constants	Low	0
Other Changes in Data Types	-	3

Problems with Data Types, High Severity (2)

	Change	Effect
1	Field rusage_system has been removed from the middle position of this structural type.	1) Previous accesses of applications to the removed field will be incorrect. 2) Layout of structure fields has been changed and therefore fields at higher positions of the structure definition may be incorrectly accessed by applications.
2	Field rusage_user has been removed from the middle position of this structural type.	1) Previous accesses of applications to the removed field will be incorrect. 2) Layout of structure fields has been changed and therefore fields at higher positions of the structure definition may be incorrectly accessed by applications.

memcached.h
[+] struct memcached_stat_st (2)

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Problems with Data Types, Medium Severity (14)

memcached.h
[+] struct memcached_st (1)

	Change	Effect
1	Field poll_timeout has been added at the middle position of this structural type.	1) Size of the inclusive type has been changed. 2) Layout of structure fields has been changed and therefore fields at higher positions of the structure definition may be incorrectly accessed by applications.

[+] affected symbols (34)

memcached_add ( memcached_st* ptr, char* key, size_t key_length, char* value, size_t value_length, time_t expiration, uint16_t flags )

1st parameter 'ptr' (pointer) has base type 'struct memcached_st'.

memcached_append ( memcached_st* ptr, char* key, size_t key_length, char* value, size_t value_length, time_t expiration, uint16_t flags )

1st parameter 'ptr' (pointer) has base type 'struct memcached_st'.

memcached_behavior_get ( memcached_st* ptr, enum memcached_behavior flag )

1st parameter 'ptr' (pointer) has base type 'struct memcached_st'.

memcached_behavior_set ( memcached_st* ptr, enum memcached_behavior flag, void* data )

1st parameter 'ptr' (pointer) has base type 'struct memcached_st'.

memcached_cas ( memcached_st* ptr, char* key, size_t key_length, char* value, size_t value_length, time_t expiration, uint16_t flags, uint64_t cas )

1st parameter 'ptr' (pointer) has base type 'struct memcached_st'.

memcached_clone ( memcached_st* clone, memcached_st* ptr )

1st parameter 'clone' (pointer) has base type 'struct memcached_st'.

memcached_create ( memcached_st* ptr )

1st parameter 'ptr' (pointer) has base type 'struct memcached_st'.

memcached_decrement ( memcached_st* ptr, char* key, size_t key_length, uint32_t offset, uint64_t* value )

1st parameter 'ptr' (pointer) has base type 'struct memcached_st'.

memcached_delete ( memcached_st* ptr, char* key, size_t key_length, time_t expiration )

1st parameter 'ptr' (pointer) has base type 'struct memcached_st'.

memcached_fetch ( memcached_st* ptr, char* key, size_t* key_length, size_t* value_length, uint16_t* flags, enum memcached_return* error )

1st parameter 'ptr' (pointer) has base type 'struct memcached_st'.

memcached_fetch_result ( memcached_st* ptr, memcached_result_st* result, enum memcached_return* error )

1st parameter 'ptr' (pointer) has base type 'struct memcached_st'.

memcached_flush ( memcached_st* ptr, time_t expiration )

1st parameter 'ptr' (pointer) has base type 'struct memcached_st'.

memcached_free ( memcached_st* ptr )

1st parameter 'ptr' (pointer) has base type 'struct memcached_st'.

memcached_get ( memcached_st* ptr, char* key, size_t key_length, size_t* value_length, uint16_t* flags, enum memcached_return* error )

1st parameter 'ptr' (pointer) has base type 'struct memcached_st'.

memcached_increment ( memcached_st* ptr, char* key, size_t key_length, uint32_t offset, uint64_t* value )

1st parameter 'ptr' (pointer) has base type 'struct memcached_st'.

memcached_mget ( memcached_st* ptr, char** keys, size_t* key_length, unsigned int number_of_keys )

1st parameter 'ptr' (pointer) has base type 'struct memcached_st'.

memcached_prepend ( memcached_st* ptr, char* key, size_t key_length, char* value, size_t value_length, time_t expiration, uint16_t flags )

1st parameter 'ptr' (pointer) has base type 'struct memcached_st'.

memcached_quit ( memcached_st* ptr )

1st parameter 'ptr' (pointer) has base type 'struct memcached_st'.

memcached_replace ( memcached_st* ptr, char* key, size_t key_length, char* value, size_t value_length, time_t expiration, uint16_t flags )

1st parameter 'ptr' (pointer) has base type 'struct memcached_st'.

memcached_result_create ( memcached_st* ptr, memcached_result_st* result )

1st parameter 'ptr' (pointer) has base type 'struct memcached_st'.

memcached_result_free ( memcached_result_st* result )

Field 'result->root' in 1st parameter 'result' (pointer) has base type 'struct memcached_st'.

memcached_result_length ( memcached_result_st* ptr )

Field 'ptr->root' in 1st parameter 'ptr' (pointer) has base type 'struct memcached_st'.

memcached_result_value ( memcached_result_st* ptr )

Field 'ptr->root' in 1st parameter 'ptr' (pointer) has base type 'struct memcached_st'.

memcached_server_add ( memcached_st* ptr, char* hostname, unsigned int port )

1st parameter 'ptr' (pointer) has base type 'struct memcached_st'.

memcached_server_add_udp ( memcached_st* ptr, char* hostname, unsigned int port )

1st parameter 'ptr' (pointer) has base type 'struct memcached_st'.

memcached_server_add_unix_socket ( memcached_st* ptr, char* filename )

1st parameter 'ptr' (pointer) has base type 'struct memcached_st'.

memcached_server_push ( memcached_st* ptr, memcached_server_st* list )

1st parameter 'ptr' (pointer) has base type 'struct memcached_st'.

memcached_set ( memcached_st* ptr, char* key, size_t key_length, char* value, size_t value_length, time_t expiration, uint16_t flags )

1st parameter 'ptr' (pointer) has base type 'struct memcached_st'.

memcached_stat ( memcached_st* ptr, char* args, enum memcached_return* error )

1st parameter 'ptr' (pointer) has base type 'struct memcached_st'.

memcached_stat_free ( memcached_st* p1, memcached_stat_st* p2 )

1st parameter 'p1' (pointer) has base type 'struct memcached_st'.

memcached_stat_get_keys ( memcached_st* ptr, memcached_stat_st* stat, enum memcached_return* error )

1st parameter 'ptr' (pointer) has base type 'struct memcached_st'.

memcached_stat_get_value ( memcached_st* ptr, memcached_stat_st* stat, char* key, enum memcached_return* error )

1st parameter 'ptr' (pointer) has base type 'struct memcached_st'.

memcached_strerror ( memcached_st* ptr, enum memcached_return rc )

1st parameter 'ptr' (pointer) has base type 'struct memcached_st'.

memcached_verbosity ( memcached_st* ptr, unsigned int verbosity )

1st parameter 'ptr' (pointer) has base type 'struct memcached_st'.

[+] struct memcached_stat_st (13)

	Change	Effect
1	The relative position of field bytes has been changed from 12 to 15.	1) Applications will access incorrect memory when attempting to access this field. 2) Size of the inclusive type has been changed.
2	The relative position of field curr_connections has been changed from 13 to 12.	1) Applications will access incorrect memory when attempting to access this field. 2) Size of the inclusive type has been changed.
3	The relative position of field pointer_size has been changed from 5 to 4.	1) Applications will access incorrect memory when attempting to access this field. 2) Size of the inclusive type has been changed.
4	The relative position of field version has been changed from 4 to 23.	1) Applications will access incorrect memory when attempting to access this field. 2) Size of the inclusive type has been changed.
5	The relative position of field connection_structures has been changed from 15 to 14.	Applications will access incorrect memory when attempting to access this field.
6	The relative position of field curr_items has been changed from 10 to 9.	Applications will access incorrect memory when attempting to access this field.
7	The relative position of field limit_maxbytes has been changed from 23 to 11.	Applications will access incorrect memory when attempting to access this field.
8	The relative position of field rusage_system_microseconds has been changed from 9 to 8.	Applications will access incorrect memory when attempting to access this field.
9	The relative position of field rusage_system_seconds has been changed from 8 to 7.	Applications will access incorrect memory when attempting to access this field.
10	The relative position of field rusage_user_microseconds has been changed from 7 to 6.	Applications will access incorrect memory when attempting to access this field.
11	The relative position of field rusage_user_seconds has been changed from 6 to 5.	Applications will access incorrect memory when attempting to access this field.
12	The relative position of field total_connections has been changed from 14 to 13.	Applications will access incorrect memory when attempting to access this field.
13	The relative position of field total_items has been changed from 11 to 10.	Applications will access incorrect memory when attempting to access this field.

[+] affected symbols (5)

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Problems with Data Types, Low Severity (27)

memcached.h
[+] struct memcached_server_st (2)

	Change	Effect
1	Field count has been added to this type.	1) This field will not be initialized by old clients. 2) Size of the inclusive type has been changed. NOTE: this field should be accessed only from the new library functions, otherwise it may result in crash or incorrect behavior of applications.
2	Size of this type has been changed from 16456 bytes to 16460 bytes.	The fields or parameters of such data type may be incorrectly initialized or accessed by old client applications.

[+] affected symbols (38)

memcached_add ( memcached_st* ptr, char* key, size_t key_length, char* value, size_t value_length, time_t expiration, uint16_t flags )

Field 'ptr->hosts' in 1st parameter 'ptr' (pointer) has base type 'struct memcached_server_st'.