I want to store some information about packets and transmit among files,so i
create a file in wireshark root directory,named performance.h:
//performance.h
#include <glib.h>
typedef struct performance_s
{
gfloat time[100];
gfloat delay[100];
guint32 packetSize[100];
guint32 payload;
guint32 index;
guint32 temp_size;
gfloat temp_time;
}performance;
extern peformance* performance_test;
in the file ,i declare a struct and declare a pointer to it,then i want to use
the variable "performance_test" in file wiretap/libpcap.c,
epan/dissectors/packet-ieee80211.c,so i define the variable "peformance_test"
in performance.c in wireshark root directory and include the head file in
wiretap/libpcap.c, epan/dissectors/packet-ieee80211.c ,but once i use the
variable in these two files,when i compile the wireshark project,it come up
with one error:undefined reference to 'peformance_test'.
it looks like the variable peformance_test should be defined and used in the
same file ,if i want to use it in different files,i think i should modify the
makefile.common to change the compile process ,but i don't know how .could
someone help me fix it,please!___________________________________________________________________________
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