ChorusOS 4.0 Migration Guide

1.2 API Changes in ChorusOS 4.0

Table 1-1 summarizes which APIs are new, or have changed, in ChorusOS 4.0.

Table 1-1 Status of APIs in ChorusOS 4.0


ChorusOS 3.2 API name	ChorusOS 4.0 API name	Status
`BSD`	`BSD`	Extended
`CORE`	`CORE`	Changed
--	`DYNAMIC_LIB`	New. See the DYNAMIC_LIB(5FEA) man page for more information.
`RESTART`	`HOT_RESTART`	New. See the HOT_RESTART(5FEA) man page for more information.
--	`IOM_IPC`	New. See the IOM_IPC(5FEA) man page for more information.
--	`IOM_OSI`	New. See the IOM_OSI(5FEA) man page for more information.
`MEM`	`MEM`	Changed
`MEM_FLAT` `MEM_PROTECTED` `MEM_VIRTUAL`	`VIRTUAL_ADDRESS_SPACE` `FS_MAPPER`	New. See the VIRTUAL_ADDRESS_SPACE(5FEA) and FS_MAPPER(5FEA) man pages for more information.
--	`NFS_SERVER`	New. See the NFS_SERVER(5FEA) man page for more information.
--	`PERF`	New. See the PERF(5FEA) man page for more information.
`POSIX_MQ`	`POSIX_MQ`	Extended
`POSIX_SHM`	`POSIX_SHM`	Extended
`SCHED_CLASS`	`ROUND_ROBIN`	Unchanged
`VIRTUAL_TIME`	`VTIMER`	Unchanged

Table 1-2 details the APIs which have changed or have been extended.

Table 1-2 Details of changed or extended APIs in ChorusOS 4.0


ChorusOS 4.0 API name	Details
`BSD`	The following functions have been added: `cfgetispeed()`, `cfgetospeed()`, `cfmakeraw()`, `cfsetispeed()`, `cfsetospeed()` and `cfsetpeed()`.
`CORE`	The Interrupt Management Service (IMS) has been removed: `f_imsIntrLevel()`, `f_imsProgLevel()`, `imsIntrMaskCount_f()`, `f_imsPreemptionCntlWord()`, `f_imsThreadEventRqst()`, `f_imsProcessSchedEvents()` and `f_imsProcessThreadEvents()`.
`MEM`	The following functions have been removed: `svPageContigAllocate()` and `svPageContigFree()`.
`POSIX_MQ`	The following function has been added: `fpathconf()`.
`POSIX_SHM`	The following functions have been added: `fchmod()`, `fchown()`, `fpathconf()` and `fstat()`.