Linux Manuals session 3

posix_spawn, posix_spawnp – spawn a process Synopsis #include <spawn.h> int posix_spawn(pid_t *pid, const char *path, const posix_spawn_file_actions_t *file_actions, const posix_spawnattr_t *attrp, char *const argv[], char *const envp[]); int posix_spawnp(pid_t *pid, const char *file, const posix_spawn_file_actions_t *file_actions, const posix_spawnattr_t *attrp, char *const argv[], char *const envp[]); Description The posix_spawn() and posix_spawnp() functions are used to create…

posix_openpt – open a pseudoterminal device Synopsis #include <fcntl.h> #include <stdlib.h> int posix_openpt(int flags); Feature Test Macro Requirements for glibc (see feature_test_macros(7)): posix_openpt(): _XOPEN_SOURCE >= 600 Description The posix_openpt() function opens an unused pseudoterminal master device, returning a file descriptor that can be used to refer to that device. The flags argument is a bit mask that…

posix_memalign, aligned_alloc, memalign, valloc, pvalloc – allocate aligned memory Synopsis #include <stdlib.h> int posix_memalign(void **memptr, size_t alignment, size_t size); void *aligned_alloc(size_t alignment, size_t size); void *valloc(size_t size); #include <malloc.h> void *memalign(size_t alignment, size_t size); void *pvalloc(size_t size); Feature Test Macro Requirements for glibc (see feature_test_macros(7)): posix_memalign(): _POSIX_C_SOURCE >= 200112L aligned_alloc(): _ISOC11_SOURCE valloc(): Since glibc 2.12: (_XOPEN_SOURCE >= 500) &&…

posix_madvise – give advice about patterns of memory usage Synopsis #include <sys/mman.h> int posix_madvise(void *addr, size_t len, int advice); Feature Test Macro Requirements for glibc (see feature_test_macros(7)): posix_madvise(): _POSIX_C_SOURCE >= 200112L Description The posix_madvise() function allows an application to advise the system about its expected patterns of usage of memory in the address range starting…

posix_fallocate – allocate file space Synopsis #include <fcntl.h> int posix_fallocate(int fd, off_t offset, off_t len); Feature Test Macro Requirements for glibc (see feature_test_macros(7)): posix_fallocate(): _POSIX_C_SOURCE >= 200112L Description The function posix_fallocate() ensures that disk space is allocated for the file referred to by the file descriptor fd for the bytes in the range starting at offset and…

position_mouse – Moves the mouse to the specified screen position. Allegro game programming library. Synopsis #include <allegro.h> void position_mouse(int x, int y); Description Moves the mouse to the specified screen position. It is safe to call even when a mouse pointer is being displayed. See Also install_mouse(3), position_mouse_z(3), set_mouse_range(3), set_mouse_speed(3), position_mouse_w(3)

QuantLib::VarianceSwap – Variance swap. Synopsis void setupExpired () const Protected Attributes Inherits QuantLib::Instrument. Classes class arguments Arguments for forward fair-variance calculation class engine base class for variance-swap engines class results Results from variance-swap calculation Public Member Functions VarianceSwap (Position::Type position, Real strike, Real notional, const Date &startDate, const Date &maturityDate) void setupArguments (PricingEngine::arguments *args) const…

popt – Parse command line options Synopsis #include <popt.h> poptContext poptGetContext(const char *name, int argc, const char **argv, const struct poptOption *options, int flags); void poptFreeContext(poptContext con); void poptResetContext(poptContext con); int poptGetNextOpt(poptContext con); const char *poptGetOptArg(poptContext con); const char *poptGetArg(poptContext con); const char *poptPeekArg(poptContext con); const char **poptGetArgs(poptContext con); const char *const poptStrerror(const int error);…

popen, pclose – pipe stream to or from a process Synopsis #include <stdio.h> FILE *popen(const char *command, const char *type); int pclose(FILE *stream); Feature Test Macro Requirements for glibc (see feature_test_macros(7)): popen(), pclose(): _POSIX_C_SOURCE >= 2     || /* Glibc versions <= 2.19: */ _BSD_SOURCE || _SVID_SOURCE Description The popen() function opens a process by creating a pipe, forking, and invoking the shell. Since a…

QuantLib::RandomDefaultModel – Base class for random default models. Synopsis RandomDefaultModel (boost::shared_ptr< Pool > pool) virtual void nextSequence (Real tmax=QL_MAX_REAL)=0 Protected Attributes Inherited by GaussianRandomDefaultModel. Public Member Functions RandomDefaultModel (boost::shared_ptr< Pool > pool) virtual void nextSequence (Real tmax=QL_MAX_REAL)=0 Protected Attributes boost::shared_ptr< Pool > pool_ Detailed Description Base class for random default models. Provides sequences of random…

pool.h – C wrapper for DMLite Pool API. Synopsis #include ‘dmlite.h’ #include ‘any.h’ #include ‘inode.h’ #include ‘utils.h’ Data Structures struct dmlite_pool Pool data. struct dmlite_chunk Chunk of data. struct dmlite_location Collection of chunks that form a replica. Macros #define POOL_TYPE_MAX 16 #define POOL_MAX 16 Typedefs typedef struct dmlite_pool dmlite_pool Pool data. typedef struct dmlite_chunk dmlite_chunk…

polygon_z_normal, polygon_z_normal_f – Finds the Z component of the normal vector to three vertices. Allegro game programming library. Synopsis #include <allegro.h> fixed polygon_z_normal(const V3D *v1, const V3D *v2, const V3D *v3); float polygon_z_normal_f(const V3D_f *v1, const V3D_f *v2, const V3D_f *v3); Description Finds the Z component of the normal vector to the specified three vertices…

polygon_z_normal, polygon_z_normal_f – Finds the Z component of the normal vector to three vertices. Allegro game programming library. Synopsis #include <allegro.h> fixed polygon_z_normal(const V3D *v1, const V3D *v2, const V3D *v3); float polygon_z_normal_f(const V3D_f *v1, const V3D_f *v2, const V3D_f *v3); Description Finds the Z component of the normal vector to the specified three vertices…

polygon3d, polygon3d_f – Draws a 3d polygon onto the specified bitmap. Allegro game programming library. Synopsis #include <allegro.h> void polygon3d(BITMAP *bmp, int type, BITMAP *texture, int vc, V3D *vtx[]); void polygon3d_f(BITMAP *bmp, int type, BITMAP *texture, int vc, V3D_f *vtx[]); Description Draw 3d polygons onto the specified bitmap, using the specified rendering mode. Unlike the…

polygon3d, polygon3d_f – Draws a 3d polygon onto the specified bitmap. Allegro game programming library. Synopsis #include <allegro.h> void polygon3d(BITMAP *bmp, int type, BITMAP *texture, int vc, V3D *vtx[]); void polygon3d_f(BITMAP *bmp, int type, BITMAP *texture, int vc, V3D_f *vtx[]); Description Draw 3d polygons onto the specified bitmap, using the specified rendering mode. Unlike the…

polygon – Draws a filled polygon. Allegro game programming library. Synopsis #include <allegro.h> void polygon(BITMAP *bmp, int vertices, const int *points, int color); Description Draws a filled polygon with an arbitrary number of corners. Pass the number of vertices and an array containing a series of x, y points (a total of vertices*2 values). Example:…

poll_scroll – Checks the status of a scroll request with triple buffering. Allegro game programming library. Synopsis #include <allegro.h> int poll_scroll(); Description This function is used for triple buffering. It checks the status of a hardware scroll previously initiated by the request_scroll() routine. Return Value Returns non-zero if it is still waiting to take place,…

poll_mouse – Polls the mouse. Allegro game programming library. Synopsis #include <allegro.h> int poll_mouse(); Description Wherever possible, Allegro will read the mouse input asynchronously (ie. from inside an interrupt handler), but on some platforms that may not be possible, in which case you must call this routine at regular intervals to update the mouse state…

poll_keyboard – Polls the keyboard. Allegro game programming library. Synopsis #include <allegro.h> int poll_keyboard(); Description Wherever possible, Allegro will read the keyboard input asynchronously (ie. from inside an interrupt handler), but on some platforms that may not be possible, in which case you must call this routine at regular intervals to update the keyboard state…

poll_keyboard – Polls the keyboard. Allegro game programming library. Synopsis #include <allegro.h> int poll_keyboard(); Description Wherever possible, Allegro will read the keyboard input asynchronously (ie. from inside an interrupt handler), but on some platforms that may not be possible, in which case you must call this routine at regular intervals to update the keyboard state…